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Samsung Galaxy S7 Repair In Kolkata by Techyuga

By November 1, 2016 One Comment
Samsung Galaxy S7 Repair

Having issues with your Samsung Galaxy S7 smartphone ? Techyuga is here to help you, We are the best Samsung Smart Phone repair center in Kolkata. For our readers here we have a tear down repair guide that will help you to fix many issues all by yourself. Let’s start reading this Samsung Galaxy S7 Repair Guide :



Samsung Galaxy S7 Repair In Kolkata

There are no exterior screws are there, Only a dark colored glue sticking the two matters tightly in this case.


removing display Samsung Galaxy S7


With the rear glass lifted by a smidge, we attack with an opening pick and slice apart the adhesive.


Black adhesive in Samsung Galaxy S7


we now find gooey black adhesive

Removing the back cover hasn’t given us access to anything useful—just a smooth surface for the glass to stick to.


screws in Samsung Galaxy S7


Fortunately, part of that surface consists of screws.

Actually, that smooth surface contains its speaker

Samsung Galaxy S7 tear down


Samsung S7 antennas

Samsung Galaxy S7 speakers


We line up the pieces for a closer look at the individual components, including the wireless charging coil.
Last year’s Galaxy flagship had a single midframe with a handful of aggressively adhered parts.


Samsung Galaxy S7 individual components
All these modular components connect to the motherboard by way of tiny spring contacts, making removal and replacement a snap—once you’ve muscled your way past all the glue and glass, anyway.


Samsung Galaxy S7 tear down components


Samsung got some flak from consumers for reducing battery capacity in last year’s S6. It seems they took the hint and made up for it by including this 3000 mAh battery in the S7.


Samsung Galaxy S7 battery removal


Working our way to the motherboard, we pluck out a 5-megapixel front-facing camera.


Samsung Galaxy S7 front camera tear down

The only front-facing camera upgrade here is the shiny new ƒ/1.7 aperture.

Samsung Galaxy S7 motherboard
With the front camera out of the way, we lift up the motherboard and find a familiar daughter-board connector on its underside.


Samsung Galaxy S7 camera


S7 got a downgrade with a 12-megapixel/4K rear camera .
However, the sensor in the S7 sports Dual Pixel autofocus technology (a.k.a. phase detection) for every pixel.

Samsung Galaxy S7 rear camera
Additionally, these pixels measure in at 1.4 µm—a full 25% increase from last year’s model—which will reduce noise and improve overall image quality.

Samsung Galaxy S7 camera tear down
So, despite having fewer pixels, even photos taken in the worst lighting should come out clearer in a head-to-head comparison.


Samsung Galaxy S7 components under EMI shields


quirreled away under the EMI shields, we find:
SK Hynix H9KNNNCTUMU-BRNMH 4 GB LPDDR4 SDRAM layered over the Qualcomm MSM8996 Snapdragon 820
Samsung KLUBG4G1CE 32 GB MLC Universal Flash Storage 2.0
Qualcomm WCD9335 Audio Codec


Samsung Galaxy S7 components under EMI shield


And some more:
Avago AFEM-9040 Multiband Multimode Module
Murata FAJ15 Front End Module
Qorvo QM78064 High Band RF Fusion Module
Qorvo QM63001A Diversity Receive Module
DSP DBMD4 Audio/Voice Processor


Samsung Galaxy S7 components on the flip side


And on the flip side…
Samsung 1316S7 Wi-Fi Module
NXP 67T05 NFC Controller
IDT P9221 Wireless Power Receiver (likely an iteration of IDT P9220)
STMicroelectronics LSM6DS3 always-on 6-Axis IMU
Qualcomm PM8996 PMIC
Qualcomm QFE3100 Envelope Tracker
Qualcomm WTR4905 and WTR3925 RF Transceivers

Samsung Galaxy S7 modular headphone jack


Next up is the S7’s modular headphone jack.
Complete with cute rubber seal!

We find more rubber seals around the lower microphone and speaker making for some serious ingress protection.

Samsung Galaxy S7 soft button


Just like its predecessor, the cables for the S7’s soft buttons are wrapped around the display-backing frame.
These sandwiched cables make a daughter-board replacement (including the charging port) next to impossible, since freeing these cables means removing the OLED screen.
Undaunted, we bring back our iOpener to ease the tension adhesive.
While we’re at it, we grab a trusty opening pick and set to work on the terrible task of prying open the OLED.


Samsung Galaxy S7 soft button LED cables


Peeling up those pesky soft button LED cables lets us finally free the daughter-board.
Just for those of you keeping score, this messy situation prevents easy replacement of: display and digitizer (of course), USB port, microphone, and soft button LEDs.


Samsung Galaxy S7 daughter board
If you need to replace the charging port, unless you have some microsoldering skills, you have two options: sacrifice those soft button LEDs or replace your display in the process.


Samsung Galaxy S7 daughter-board tear down
Remember that fake “midframe” made of antennas? Turns out the S7 just buried its midframe deeper, and adhered the display to it, rather than secure its display assembly to a midframe with screws.
This beefs up the S7’s waterproofiness, but means more of a fight to repair the thing should you suffer non-water related troubles.


Samsung Galaxy S7 heat pipe


Alright, the moment we’ve all been waiting for: the legendary “liquid cooling” system in the S7.
It’s a tiny copper twig.
Actually, it’s a teeny heat pipe (thin copper tube) with less than half a gram of material, measuring less than half a millimeter thick.
This may not be as revolutionary as Samsung describes it, but most heat pipes do technically use liquid to transfer heat.


Samsung Galaxy S7 heat pipe
In the case of the S7, we’re guessing that the pipe transfers heat to the phone’s metal midframe, where it can then radiate out to the side—or directly into your hands.
We’ve seen heat pipes in phones before, but the growing need for them shows how phone processors are getting faster (and sometimes hotter) each year.


Samsung Galaxy S7 tear down
Many components are modular and can be replaced independently.
Unlike the S6 Edge, the battery can be removed without first ousting the motherboard—but tough adhesive and a glued-on rear panel make replacement more difficult than necessary.
The display needs to be removed (and likely destroyed) if you want to replace the USB port.
Front and back glass make for double the crackability, and strong adhesive on the rear glass makes it very difficult to gain entry into the device.
Replacing the glass without destroying the display is probably impossible.


Call 9088888835 OR Live chat with our engineers here, You can also book a technician below.

You can only book technicians for Samsung Galaxy S7 Repair in Kolkata area. However, if you want us to fix your Samsung Galaxy S7, you can send us your device via courier service. For more information, please live chat with our support engineers or call 9088888835 now.




Author Jingyansu

Founder and CEO of techyuga.

More posts by Jingyansu

Join the discussion One Comment

  • Kittredge Seely says:

    The detailed description and pictures of the Samsung Galaxy S7 were excellent. Your picture were crisp and clear. Most web sites and professional magazines would be proud to publish this article.

    Congratulations on a job well done.

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