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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Samsung > Samsung Android based phones

Samsung Android based phones Discussion and all of your questions relating to the Samsung Android based phones.

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Old 01-10-2019, 12:45   #1 (permalink)
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Bootloop with broken recovery S7 G930F plz help !!


Hello , when I tried to unlock s7 on oreo 8.0 UK , on z3x It cant and It says try to downgrade modem , after rebooting the phone it was without baseband and IMEI , so when I tried to repair all that I Occurred in a deep hole
My phone recently got stuck in a recovery bootloop where it instantly boots to recovery mode. I tried getting into recovery mode via power + volume up + home command, but the recovery mode is not accessible (options to factory reset, clear cache, etc are not available), but instead says E: Unable to mount cache (Invalid argument) and proceeds to reboot after 30-40 seconds . I can however still properly boot into download mode.

After two days of working till now no solution I treid many roms and combinitions I am On u3 protection , any help
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Old 01-10-2019, 12:47   #2 (permalink)
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Also I flashed a TWRP in order to do hard reset , I did it but also dont work
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Old 01-10-2019, 16:11   #3 (permalink)
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install again the rom 8.0 the 4 files and the problem will be corrected but if you want to unlock it there is still no solution for u3
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Old 01-10-2019, 16:55   #4 (permalink)
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josahusa // Thanks for your reponse , but I tried alot of roms with 4 files , defirent regions but not working , the one way when the phone works is with combinition rom , but without signal no imei no baseband
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Old 01-10-2019, 17:07   #5 (permalink)
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https://imgur.com/a/SNpyZzu

this is a link of what I had finaly
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Old 01-10-2019, 21:51   #6 (permalink)
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Your DRK is lost, Is FRP lock on in download mode? A solution would be to flash a No-DMVerity boot image. It will work fine then.
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Old 01-13-2019, 13:27   #7 (permalink)
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AUGUSTIN45 // Thanks really for your answer
but frp is off on download mode , can you guide me plz ?
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Old 01-13-2019, 23:16   #8 (permalink)
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Quote:
Originally Posted by issam30 View Post
AUGUSTIN45 // Thanks really for your answer
but frp is off on download mode , can you guide me plz ?
phone in ur hand ? if yes give tamviwer i try to help u
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Old 01-14-2019, 09:40   #9 (permalink)
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@ issam30

if your phone don't have any H/W issue for the Unknown Baseband, just apply this method your OG IMEI will be restored.

After completed the previews procedure, flash with 4 file official ROM, after flash if you get DM verification failed just write 6.0.1 CF auto root.

hopefully your phone will be OK.
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Old 01-16-2019, 14:29   #10 (permalink)
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Quote:
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phone in ur hand ? if yes give tamviwer i try to help u
Thank you soo much , yes the phone is my hand now , I payed it for *******r hhhh
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Old 01-16-2019, 14:36   #11 (permalink)
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Quote:
Originally Posted by ...:::::NP™:::::... View Post
@ issam30

if your phone don't have any H/W issue for the Unknown Baseband, just apply this method your OG IMEI will be restored.

After completed the previews procedure, flash with 4 file official ROM, after flash if you get DM verification failed just write 6.0.1 CF auto root.

hopefully your phone will be OK.
thank you soo much , this is log when I rooted and I click repair imei

Waiting ADB device... OK
Reading phone info...
Model: SM-G930F
Android version: 6.0.1
PDA version: FA60_G930FXXU3ARI2
CSC version:
Phone version:
Product code:
CSC country code:
CSC sales code:
Phone SN: R58J153W01N
IMEI:
HW version:
RF cal date:
Chip name: EXYNOS8890
Modem board:
Security patch: 2016-01-01
Boot Warranty bit: 1
SIM State: NOT_READY
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Can not detected modem type

Done with Samsung Tool PRO v.34.8
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Old 01-16-2019, 14:39   #12 (permalink)
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Also ...
Waiting ADB device... OK
Reading phone info...
Model: SM-G930F
Android version: 6.0.1
PDA version: FA60_G930FXXU3ARI2
CSC version:
Phone version:
Product code:
CSC country code:
CSC sales code:
Phone SN: R58J153W01N
IMEI:
HW version:
RF cal date:
Chip name: EXYNOS8890
Modem board:
Security patch: 2016-01-01
Boot Warranty bit: 1
SIM State: NOT_READY
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating... OK
Writing zTool... OK
Initialization zTool... OK
Rebooting phone... OK
Patching CERT check... done

Done with Samsung Tool PRO v.34.8


and no imei no baseband , soo I cant jump too the next step
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Old 01-16-2019, 14:48   #13 (permalink)
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kernel rev check fail device 1 binary 0

when I try to root with octopus
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Old 01-16-2019, 14:52   #14 (permalink)
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I can see your post log, your phone CSC & CP is missing that's why your phone has Unknown Baseband problem.

About any professional tools related discussion, you can post there own section they can help you properly.
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Old 01-16-2019, 14:55   #15 (permalink)
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I dont understand exactly what you want to say sir , can you expain plz
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