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The Galaxy S7 Edge is the curved-screen variant of Samsung's 2016 flagship phone, the Galaxy S7. Announced February 2016 and released on March 11. Model SM-G935.

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Why my phone won’t turn on or come off frp lock or recognised by pc?

I flashed sac23 s9 rom 4 days ago now and when it booted up there was no signal so I looked all over the web and couldn’t find much helpful so checked my imei and all my info was unknown so I connected it to my pc and it didn’t recognise it any more it says ‘usb device not recognised , so I uninstalled the drivers and installed new ones and still nothing tried Samsung kies can’t connect and tried to get smart switch as the internet suggested but cannot seem to run it but I no nothing will help so then I flashed through twrp project dream 1.3 rom and same problem so then I just rebooted and then frp lock was on and now it won’t turn on or be recognised by the computer no matter what I try. My model is sm-g935f unlocked and it says binary is custom, system status: custom, frp lock: on, secure download: enabled, warranty void: 1 (0 030c) Rp swrev: B:2 K:0 S:1 So PLEASE PLEASE can anyone help would really appreciate it as I cannot afford to take it to a shop and from what I see online anyone who has they make them replace there motherboard which I don’t no why because it is caused by soft wear not hardwear. Thanks Lisa

Update (07/15/2022)

I never got it fixed

Answer this question I have this problem too

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It’s a software issue. FRP lock should always be disabled (OEM unlock enabled in developer option) when a custom ROM / kernel / root is being used on the phone.

You’ll need to flash latest stock Samsung Firmware for your phone to unbrick it.

Note the following below:

  • When flashing back to Stock Samsung Firmware you must use ODIN v3.1.3 or newer when flashing 8.0 firmware (Always best to flash latest. )
  • Factory reset must be done after flashing the Samsung firmware, either you do this in recovery mode or when you are flashing the non-HOME CSC file.
  • Make sure the firmware you download is for SM-G935F and latest update / version.

Use this guide on how to flash Samsung Firmware: https://updato.com/firmware-archive-sele...

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5 Comments:

Thanks but I must have accidentally turned of oem in developer settings I’m not sure when but I must have as it’s my own phone and I no the details to sign in but cannot get it turned on or to be recognised by my computer I’ve tried to uninstall the usb drivers and installed new ones but still nothing

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Shouldn't be completely dead, holding volume down, home and power for 20 seconds should put it into download mode.

If you think the battery is flat on the phone have it plugged into charge while doing so. If it does need charge leave it plugged into charger while it's on that light blue screen for a few hours.

Last resort take it to a reputable repair shop to get them to unbrick it for you, fairly sure it's a software issue that doesnt require changing logic board.

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It does go into recovery mode but all pc say usb not recognised and cannot fix that problem but thanks for your help anyway.

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No problem, was about to say you need Android USB drivers to get it to be detected via Odin.

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Have the same problem, did you found any fixes?

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So how i got it to fix is i replaced the usb port

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having same issue haven't fix anything anyone have solution for that ?

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have you tried replacing mobile usb port , i havi haven't tried but i want to know of that help? because my phone Oem in unlocked but still is not recognized by odin

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Lisa Ladyhypa will be eternally grateful.
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