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Chip Level Repairing

11 Jul 2019
Your customers come up with Samsung Galaxy Phones or Samsung Tablet and you don't know where to begin with the repair? Ask mobile repairing online for support and we got updated information on Samsung Galaxy S7 motherboard for you here in this blog post.

Chip Level Repairing Help

s7 edge logic board recognize the IC integrated Circuits diagram solution
Samsung chip level repairing Help
Our network of repair services in Karachi Pakistan is now is positioned to offer Samsung Chip Level Repairing services for all in need. we are trying to help our blog readers in repairing of Samsung Galaxy phones series and Samsung tablet to do their own Samsung phone and tablet repair business. For more details about Samsung Chip Level Repairing, take a closer look and read this blog post complete. in a today blog post, we are looking at the Samsung Galaxy S7 motherboard, which includes a smartphone's primary electronic parts.
internal and external parts of a smartphone, Disassembled into basic parts
Samsung Galaxy S7 board
In the picture below you can see the motherboard internal, and external parts of a smartphone, Disassembled into basic parts. In fact, the board is made up of two halves connected by a short but intense loop. The upper (main) basic electronic parts are arranged at the bottom-primarily with different micro USB interfaces.

But actually the Samsung Galaxy S7 motherboard. Protective screens not removed from interference, but most of the visible components in particular.
samsung motherboard repair fix a wide range of Galaxy S7 problems
Galaxy S7 logic board
MicroSD and Slot SIM-Cards

For SIM-card(s) and MicroSD memory, the Galaxy S7 and Samsung Galaxy s7 edge logic board used a combined tray. In models with a single SIM-card (part of the SM-G930F, all part of the American and Korean versions) have a dedicated MicroSD slot, the second nano-SIM Duos models are aligned with MicroSD for two SIM-card slots.

Qualcomm Snapdragon Processor

Here on the motherboard, Galaxy S7 is the chipset, Qualcomm Snapdragon 820 for Chinese and American options, and Exynos 8890 for everyone else. read more details about Qualcomm Snapdragon 820 here

Universal Flash Storage UFS Memory

Location dislocation fast flash memory format Universal Flash Storage (UFS) 2.0, 32 Gb, some-64 Gb, and RAM LPDDR4 RAM format in most cases. if you dont know about UFS memory! read details on Wikipedia


NFC (Near-field communication) and MST (Magnetic Secure Transmission) modules that use a smartphone as a credit card to perform contactless payment features.

for more details about these two modules visit the link below:
Near-field communication
Magnetic Secure Transmission

NFC module can be used with a wide range of mobile payment apps, MST module-Samsung Pay only.

Wireless Charger IC

Wireless charging of the module and antenna connector. It supports both the Qi and PMA standards. you can read more here about wireless charging technology WCT and Qi PMA

HRM Heart Rate Sensor

Samsung heart rate sensor Installed in the phone next to the camera flash, the sensor can read a person's heart rate for a few seconds when he holds his finger up. you can Use Samsung heart rate sensor feature with S Health app free application developed by Samsung Company. Three years ago, Samsung integrated a heart rate sensor into its flagship device and Samsung became the first phone company to provide its customers with such a vital health monitor. Such a sensor may also be found in some Chinese phones but their accuracy and reliability are highly questioned.

what is Samsung heart rate sensor in Samsung Galaxy Phones? you can read here in details

Micro USB Connector

Micro USB 2.0 Connector is a unique alloy produced to protect against dust and water. Also, if the water inserts into the port it locks the port automatically until it is dry. Only wireless charging of the Samsung Galaxy phones can be done this time.

Now have a closer look of Samsung Galaxy S7 motherboard to recognize the IC integrated Circuits.

Integrated circuit ICs are the brain and heart in all smartphone circuits if you want to do repairs on modern phones and tablets, IC is on every mobile phone. if you don't know what is an Integrated circuit? on all smartphone circuit boards read this blog post first

Chip Level Repairing Guide 2019

This is the Best way to get the A - Z guide of integrated Circuit on all Samsung Galaxy circuit boards. this is the color diagram of Samsung Galaxy s7. the colors line around the chips are the mark tells us about details of Integrated Circuit.
circuit diagram and comprehensive DIY resources
mobile motherboard repairing
  • Red line chip is Qualcomm Snapdragon processors
  • Orange color line chip is Universal Flash Storage
  • The yellow color is Qualcomm WCD9335 Audio IC
Service Manuals with Schematic Diagrams PDF download free
Samsung Mobile Schematics
  • Redline chip is AFEM Multiband Multimode Module. in Samsung Galaxy S7 the AFEM Multiband Multimode Module IC is ANT switch, power amplifiers, and duplexers. read more here
  • Orange color chip is rf front end module. rf controllers and rf front end is Murata FAJ15 IC in Samsung Galaxy S7 work as digital baseband system
  • The yellow color Chip is High Band RF Fusion Module. Qorvo QM78064 is a module that integrates all major cellular networks and receives RF functionality. you can read more here about this chip
  • The Green Color Chip is Diversity Receive Module. you can read more about Qorvo QM63001A here
  • The sky blue Color Chip is Audio Voice Processor. you can download and read more details about DSP DBMD4 in a pdf document
Samsung cell phones information updated in 2019
Samsung Mobile
  • In this picture, the red Color Chip is Wi-Fi Module. Samsung 1316S7 Wi-Fi Module Is a communication standard wireless transmission and reception system. click here to read more about Samsung 1316S7 Wi-Fi Module
  • Orange line color chip is an NFC IC. the NXP 67T05 NFC Controller
  • The yellow color Chip is Wireless Power Receiver IC. IDT P9221 Wireless Power Receiver is a Highly integrated wireless medium-power IC single-chip receiver. The device is configured to obtain a wireless transmitter AC power signal and transforms it into a rectified output voltage. read more
  • The Green Color IC is a 3D digital accelerometer chip. read complete details about STMicroelectronics LSM6DS3 here
  • The Green Color IC is an LTE Multimode Modem also called Envelope Tracker. Read Qualcomm QFE3100 Envelope Tracker function and details here
  • The sky blue Color Chip is Power Management IC PMIC. Qualcomm PM8996 PMIC also knows as PMIC Qualcomm manages, controls and distributes DC voltages from the source of the battery to other related circuits or chips. read more about Power management integrated circuit here
  • The purple color line Chips are 3G LTE Multimode Modem and RF Transceiver. Qualcomm WTR4905 and WTR3925 RF Transceivers made for 3G Generation smartphones.
if you are searching Samsung Chip Level Repairing, Samsung Chip Level Repair, and Samsung Chip Level Repair part then visit Samsung Galaxy motherboard PDF Diagrams to download and learn more about Samsung Galaxy motherboard

Do you want to know which same parts are there in all Smartphones? If yes, go through this entire Gif Video Tutorial to know all the information you need Read Visual Guide Inside of Smartphones

And at the end of this post some useful resources to learn smartphone repair business

2019 Phone Repair PDF Free Download Best way to learn basic to advance skills with these 10 PDF Books

click here to know what is the safe temperature for desoldering components and IC with the analog hot air station in mobile repairing

how to use a multimeter to test a smartphone motherboard digital multimeter step by step principle
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اب ہماری مفت ایپ آزمائیں

16 May 2019
موبائل ریپئرنگ آن لائن نے اسمارٹ فون ریپئرنگ کورس پر ایک نیا ایپ جاری کیا ہے. اس ایپ کی مدد
سے آپ اردو اور ہندی میں فری پی ڈی ایف کتابیں ڈاؤن لوڈ کر سکتے ہیں
یہ ایپ موبائل فون اور اسمارٹ فون سرکٹ ڈایا گرام پی ڈی ایف بھی فرہام کر رہا ہے اس فری ایپ کو اپنے اینڈرائڈ موبائل یا ٹیبلٹ پر ڈاؤن لوڈ کرنے کے لئے نیچے دیے گئے بٹن پے کلک کریں
موبائل فون اور اسمارٹ فون سرکٹ ڈایا گرام پی ڈی ایف
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Huawei g610 u10 Flash File Download link

25 Apr 2019
Huawei g610 u10 Firmware with USB Driver file. This Official Firmware Flash File is 100% Tested on Huawei g610 u10 updates. We also provide you all Huawei Stock Firmware Flash Files direct download link. This file is also supported Pakistani Huawei Smartphone as well.
How to flash Huawei 
On this blog page, you will find the official Firmware link to download  Stock ROM (flash file) on your laptop. Firmware comes in a zip package contains Flash File, USB Driver and Flash Tool of Huawei g610 u10

How to Flash Huawei G610 u10 Four Free Tips

there are 4 tips to Flash Huawei Ascend g610 u10 using official Firmware

Tip 1: Download and extract the Huawei Ascend G6-U10 Flash File, USB Driver, and Flash Tool on your computer with the help of Winrar software

Tip 2: After extracting the files, you will be able to see the Flash File and USB Driver files.

Tip 3: Install the provided Huawei Ascend G6-U10 USB Driver on your laptop.

Tip 4: Then flash your Huawei Ascend G6-U10 with a flash file using Flash Tool.

if you are a beginner: Mobile Software Repairing Course has been designed to provide you professional knowledge and skills for repairing, installing and upgrading Mobile Softwares


If you are going to flash the Huawei Ascend G6-U10 using stock firmware, then first take a backup of your data as because your personal data will be deleted after flashing.
The firmware is 100% Tested by mobile repairing online mobile software technician and shared on this blog page. we help you to recover your Huawei Ascend G6-U10 smartphone form boot loop, software error, update error, hanging and software dead issue.
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Smartphone Repair Course App

20 Apr 2019
The Smartphone Repair Course App is providing step by step training with a mobile phone and smartphone circuit diagrams PDF, DOC, Notes & Video Tutorials

Best Way to Seek Professional Practical Training

This App tech you base electronics, mobile phone fault tracing with Multimeter, Power supply, and Cell Phone PCB Soldering with the help of professional mobile repairing tools.
App has simplified mobile phone repair to a great extent. It is written bearing in mind ease and simplicity so that it is just a cakewalk to learn and take up smartphone repairs as a career.
Smartphone Repair Course App also covers a major fault that today android phones are likely to develop, showing you how to identify the problem and how to repair or replace the Defective IC and Parts. This App is a simple and easy way to learn everything you need to about how smartphones components work and how to be able to repair them.
Best Way to Seek Professional Practical Training
startup screen

Practical Oriented Training App for Learning Mobile Phone and Smartphone Repairing
2nd screen
This app is a step by step training program, taught by the Muhammad Asif Azeemi who have expert knowledge of repairing mobile phones. Muhammad Asif Azeemi is a Cell Phone Engineer, Blogger, Young Entrepreneur, and Founder of Mobile Repairing Online repairing and Training Center. He has published more than 250 articles on Cell Phone and smartphone repairing on this blog. helping thousands of people work more happily with the cell phone repair business. he is the largest supplier of smartphone problems and solutions pdf books across the globe. Asif is a Certified cell phone repair technician and also run his own mobile repair store in Karachi Pakistan. he spent 15 years as a mobile repairing course instructor and smartphone repair trainer, to train more than 9,000 students, both in the classroom and via the Internet.  He is the author of Book, Learn Cell Phone Repairing (part one) and Learning from the Mistakes of Cell Phone Repair Technicians. Asif and his team study the latest techniques and technology to keep your smartphone repairing business are running at peak performance.
Best way to seek mobile repair professional practical training
PDF Ebooks in Hindi
Through this App, Asif and His Team trying to helping those who do not know " How to " learn the mobile phone and smartphone repairing. We are uploading new information weekly to make your learning easier & knowledgeable. You can Get Proven Mobile Repairing Tips Straight to Your Smartphone, Tablet, and Android Devices Get access to exclusive tips, tutorials and phone repair solution not found on this blog. For smartphone service, repairing and informational tips and techniques install Smartphone Repair Course App today in your android device.
The Smartphone Repair Course Free App is providing mobile phone and smartphone circuit diagrams, PDF ebooks and Notes

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2019 Phone Repair PDF Free Download

26 Mar 2019
Download PDF file on mobile phone repairing Best way to get complete information on your mobile phone
pdf free downlaod 2019
Get A Free PDF Catalog on mobile repairing tools name list: you can view it before downloading click the link mobile repairing tools the page contains all the best Products and its Reviews for buying the top Resource.

Download and view 2019 mobile repairing tools list in PDF document here
Good News for apple USA, apple UK, and Apple Support Users 
inside of an iphone 7 Take a peek inside the latest phone offerings from Apple
Apple iPhone Chip Level Learning Guide 2019

Get A Free PDF Copy Of Inside the Apple iPhone 7 Get Updated information on Apple Devices 2019 if you want to Go Further in Parts Identification with apple iphone parts diagram this PDF Document on Inside the Apple iPhone will help you a lot!

Get A Free 3 Hottest mobile repairing course pdf: you can view it before downloading click on mobile repairing course pdf free download the blog post contains all the mobile hardware software Handling Procedures details you need to learn advance mobile repairing.

Download how to learn mobile repairing pdf here
PDF Document
Integrated circuit ICs are the brain and heart in all smartphone block diagram pdf. Get A Free Pdf on Integrated circuits of Mobile Phone for Hardware Repairing: you can read it before download it on your device. click what is an Integrated Circuit to read 1746 words guide right now. if you want to do repairs on modern phones and tablet with the help of smartphone troubleshooting and repair pdf

Click Mobile Phone Circuit Integrated Circuits to Download PDF file on Integrated Circuits
watch 18 mobile circuit diagram on your device right now
mobile circuit diagram
To understand the entire system of mobile phones you have to read the mobile phone circuit diagram first. Get A Free mobile phone circuit diagram pdf: you can watch it before download it on your mobile. click all mobile circuit diagram in pdf to watch 18 mobile circuit diagram on your device right now.

Download mobile phone circuit diagram book pdf the Best way to get complete information on mobiles diagrams.

The Unlimited Guide on Multimeters Comparison

digital multimeter pdf how to use a multimeter to test an outlet
digital multimeter working
The PDF Guide on Top Multifunctional Digital Multimeter we tried understanding what a digital multimeter is how the probes work where the probes need to be placed. the Best way to measure voltage, current, resistance and electronic components on a cell phone circuit board thank you very much for reading
Do you want to download Mobile Jumper Setting PDF right now
Best Jumper Setting guide 
Do you want to download Mobile Jumper Setting PDF right now?
you can read it when it’s convenient for you. Get A Free PDF on Mobile Jumper Setting 2019 guide Best way to get complete information on Jumper Setting
मोबाइल फोन पर बुनियादी इलेक्ट्रॉनिक्स की जांच कैसे करें (भाग 1)
यहाँ डाउनलोड करें
इस PDF डॉक्यूमेंट को डाउनलोड करने के लिए मोबाइल फोन पार्ट 1 में बेसिक इलेक्ट्रॉनिक्स की जाँच कैसे करें how to check basic Electronics in a mobile phone (part 1) click here to download this PDF Document

Download 10 best tips to save your water damaged cell phone in PDF Document Here.

you can read it here before download it on your device. click the link below Cell Phone Water Damage Repair solution

The Unlimited Guide on Variable Linear DC Power Supply

How to Measure DC Power Supply Reading to Repair Smartphones, A Complete Step by Step Guide to Know the Testing Principle. you can view it before downloading click on How To Use DC Power Supply the blog post contains all the mobile hardware software Measure techniques in details you need to learn advance mobile repairing.
Download Uses of DC Power Supply in Mobile Phone Repairing PDF here
If you need any PDF Document on Phone Repairing leave a Topic in the Comment Box

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Analog Hot Air Station 2019

14 Feb 2019

Analog Hot Air Station for Mobile Phone Repairing

In this blog post, I am about to explain What are some common uses of a rework station in mobile
phone repairing? to do that let us start form analog rework station overview
Now in analog hot air station, there are two knob Air and heater.
This hot-air rework station is great for professionals and hobbyists in need of tight temperature tolerances and large air flows
temperature and air knob
Heater element exists in Handle that is directly controlled by this knob. If you'd turn it on the button, this red light gets on also, you turn this button as per need.
Plug in the power cord of the station to ac current and switch ON by this button
station power button
when this light blinks.
Most hot air rework station has an automatic light feature. This means that when the heater Temperature rich to your set knob the light blinks
This light blinks
It means you Heater element Get warm. Besides,
the heater inside the rework station handle gets red when it leads to his Temperature
this handle has a heater inside
there is a Heater inside the Handle and it gets it red when the heat gun is continuously on Means is now is too much hot.

Besides a heat gun, you’ll need a few more mobile hardware repairing tools like soldering flux, heat resistant tape, biological knife, screwdriver, Tweezer, BGA reballing paste, and BGA stencils.

If you already have digital rework station and dont know how to do soldering work on smartphone circuits and technical details read this blog post

Some Common Uses of Analog Hot Air Station in Cell Phone Repair

Now how to resolder the components

to work on small components. moved up the knob of heater option to number two.
the knobs number are actually 100, 200 so uses it carefully
set on 200
You can also move it to three if you need. one thing very important that the numbers you'll see around the knobs are actually 100, 200, and 300 so you should very careful via using this. If you move the knob to Number two it means 200 and a midpoint is 250. for big components, You turn it on to three and keep air mini. what is mini?
hot air station air knobs number are actually 300, 400 so use it carefully
set on 250
mini means that you keep air position on the analog hot air station between two and three.

Now Doing Soldering Practical on Mobile Phone Circuit

learn to unsolder then solder the component in a mobile phone circuit
p sign is the component
Apply solder flux on the components to be unsoldered.

Use of Soldering Flux
Flux is a very important part of soldering. Flux is necessary to reduce the oxides that tend to form whenever you have hot metals in contact with the air
this is flux

soldering flux is a liquid paste which is applied at the edges of all IC integrated circuits before resoldering or moving. smd hot air rework station heating and hot air help melt solder paste into the IC beneath.
Solder flux is great for all of your solder, desolder, rework and reflow purposes! For those of you unfamiliar, flux solder flow cleanly onto the parts you are soldering
Solder Flux Demonstration
Then you close it to your component for heating as well as touch the device to absolves the components works or not and keep giving heat.
close the handle to your component for heating the components works or not and keep giving hot air
Heating Component Demonstration
when it gets too much hot Then leave it from the tweezer slowly.
use tweezer to move component form phone circuit is easy
tweezer demonstration
As you can see in the image hold the component from the tweezer and move it very slowly by using
finger while giving heat by smd hot air gun continuously the component will separate when silver shine comes as you see in the image.
giving heat by hot air station continuously to component then it corners get silver shine
it gets separate
The same process you can do for adjustment
apply soldering flux and heat both ends of the component with the hot air station
resoldering demonstration
put the component on the place and give heat gives silver shine.
resoldering is great for rework and reflow of current properly in the circuit
resolder component
in this image, there are too many components but don't use the heat gun in complicated areas As you can see, these parts that are fixed on the side can easily move or separate by the Heat gun
Samsung S6 circuit components highlighted in this image
complicated area is highlighted red in color
but using a heat gun in a complicated area are not allowed.

Now Doing Soldering Practical on All Mobile Phone IC circuits

to solder IC You keep your heat gun heater knob on and keep Air Normal in this picture these ICs
You can see in this picture these types of cell phone solder IC can resolder or remove by hot air station
IC is highlighted in red
can easily be removed so set your heat gun on 350 and keep Air Normal If you have too much
Rework Station for desoldering and soldering of IC mobile phone repairing
heat can set on 350
wait for heating that as per need heat can be little increased

Heat Resistant Tape
This tape is a fantastic insulator, like electrical tape. It also provides good resistance to corrosion and the silicone adhesive holds tight throughout the tape’s rated temperature range
High-Temperature Adhesive Tape

heat resistant tape is easily available in markets. this tape absolves heat.
If you give other components sudden heat the components can get damaged due to thermal shock. the heat resistant tape is used to save them
apply tape like this
Means if you apply on a specific component, those components do not get hot.

Now Doing Soldering Practical on Microchips

Usually, nowadays microchips are not used in a smartphone.
Soldering Microchip by hand soldering using hot air station for mobile phone repairing is good
this is microchip
In the picture, you'll see it. It can be called the microchips. to remove microchips.
soldering and unsoldering Microchip pet your heat gun on knob on high temperature
Drag soldering
Your heater should be on 4.5 and air would be in normal like med. Remember that you will have to revolve your heat gun while working.
revolve your solder station while working do not use in one position at a time
demonstration of revolving
revolving means do not use a heat gun in one position at a time. It must be move or evolve.

Now Doing Soldering Practical on BGA IC Integrated Circuits

Rework Station also called BGA Rework Station. Rework Station also called BGA Rework Station.
To work on balls grid array IC you have to use some additional mobile repair tools and components
to give heat from the bottom on the IC.
BGA ICs, while it was not as frequent in older SMD ICs. soldering is more comfortable with the rework station
pasted ic
BGA ICs means dose ICs that are punched by machines on a circuit and fixed the corners
pasted BGA ICs punched by machines on a circuit and fixed the corners by glue
pasted IC image
with any kind of glue. To remove this IC. Take a knife that is used in a biological laboratory and feed it
until unless it gets red from the front. remember one thing that paste must use in fixing chips, so take the
hated knife and place it slowly, slowly
as you'll see in the video in this process hated a knife easily move into the chip. This BGA chip, similarly
remove as previous you're a
set rework station heater on four point five and hot air on normal position
for unsolder BGA IC
hater should be on 4.5 and air would be a normal like med use paste and remove the chip but if you place
this BGA chip to another circuit, then you will have to make balls.
BGA Rework Station using some additional equipment like Pre-heater to give heat from the bottom on IC
the Balls have gone
Ball making work is very expensive and demandable.
If you can hand solder a BGA-packaged IC, requires a master solderer involving flux, templates and BGA paste
reballing tools
in the image, This is called BGA Kit.
pick-and-place IC on the bottom of black paper templates
Universal BGA Reballing Stencil

the black paper you'll see is that different Stencil. now Put down the IC under that stencil,
you can use screw driver to hold the IC on template during reballing
use screwdriver
then you will do it. It becomes balls for pasting the IC.
this reballing paste is used to make balls on BGA IC
BGA Reballing Paste with Scraper
This liquid is the best.
this tool is used to fill the holes on the template with the BGA paste
tool to fill the holes
This paste works perfectly and this is strong also as you are watching the process
when you heat the IC by rework station the paste become balls
heating BGA with rework station
to remove the IC is the same as you have already seen, but this is very fragile so the heat it lightly
holding air on normal position and heat it with 350 temperature
use low air pressure
in this process Keep the air in mad then move it on 3 while working and heat must be in between
3 to 4 when
when the BGA IC balls is ready after giving heat it look like this
IC Balls ready
You'll see the little bubbles while heating apply this paste

It is a necessary material for repairing the mobile phone and other kind electronic's mainboard
Professional Soldering Paste
it means the IC is resoldering Now Stop the heat gun and wait for IC to get Cool.

Use tweezer to postion the Integrated Circuit and to see the ready balls on the BGA
hold with tweezer
use a magnifying glass to see the BGA IC balls before resoldering on the mobile phone circuit
BGA IC balls magnifying glass view  
To know the reasons for ICs getting dry soldered read this blog post

Now Doing Soldering Practical on Filter IC

to resoldering Voltage Controlled Oscillator on mobile phone circuit always used hot air station
also called VCO IC
These filter ICs. to remove These move heater point on 4.5 and if needed, move to 5 and air always normal.
to solder Voltage Controlled Oscillator on phone circuit set smd gun heater knob on 4
for removing filter ic 
When IC is removed it looks like this as an image
to removing crystal clock oscillator form mobile phone circuit set hot air station on 5
when remove
As you can see these walls are clean by using the soldering iron.
to clean Voltage Controlled Oscillator IC print on the mobile phone circuit use soldering iron
solder wire to clean
Then it places under that kind of net.
hold Power clock Oscillator IC by tweezer and then apply the heat by the hot air gun
apply the heat by hot air station
As these silver prints can be seen then pays the pump bob that is available in the market hold
the circuit by using a screwdriver and then apply the heat by the heat gun.

if you want to know more about soldering iron, solder station and new mobile repairing tools special price
like desoldering tweezers How to Use Them read this article on Micro Soldering Repair Training

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