N920C FRP lock reactivation - GSM-Forum

66nakyoz · 01-04-2017, 16:33

Problem as follows:

N920C with newest firmware; rooted and repaired IMEI;
CERT patch OK; after that reset FRP and reset to factory.

Phone OK, Network OK;
5 Time reboot tried without problems.

Google account registered and updated all applications. No firmware update.

1 boot after update:
CUSTOM BINARY BLOCKED BY FRP LOCK

How to solve???
Thx in advance.

66nakyoz · 01-04-2017, 21:37

No response, I go on trying (:-)
Flashing the sboot and boot files from the used firmware let the phone boot again.
But now there is a firmware update OTA that updates the Bootloader again and reactivates the FRP lock again.
How to solve? Pls help
Updating with full flash solves the FRp problem but then the Network is lost with repaired IMEI.
Original IMEI + Official Firmware and the phoen works again like new (:-) But that's not what we want

HndCivic99 · 01-04-2017, 22:49

Make sure OEM Unlocking is checked, so you don't get the custom binary blocked by FRP

zishhaider · 01-04-2017, 22:52

Root it..write cert.. flash again.. finished.. but keep in mind if knox tripped in such mobikes gives mobilecbettery drain issues now these days.

66nakyoz · 01-05-2017, 01:49

OK finished. The new bootloader that comes over OTA definitively
sees the patched imei part and quits function with FRP lock message.
My solution was to update, root, repair and reset FRP again.
After reset and disabled updates seems to work. OEM tick in developer snd disabling of security messages stopped the popups. Hope this helps. Thx again

HndCivic99 · 01-05-2017, 02:05

if I helped any please hit the thanks button

jahangir_123 · 03-30-2017, 11:12

System Ver: 6.0.1 REL
API Level: 23
Incremental: N920CXXU3BPJ5
Model: SM-N920C
Brand: samsung
Device: noblelte
Platform: exynos5

Searching Samsung USB Flash interface... COM7 detected
Setup connection... Ok
Reading PIT from phone... Ok
Searching FRP lock... Ok
Erasing FRP lock... Ok
Reset done
For complete reset FRP, goto 'Backup and reset' and make 'Factory data reset'

Done with Samsung Tool PRO v.27.9

01-04-2017, 16:33	#1 (permalink)
66nakyoz Crazy Poster Join Date: Apr 2005 Age: 48 Posts: 54 Member: 136882 Status: Offline Thanks Meter: 16	N920C FRP lock reactivation Problem as follows: N920C with newest firmware; rooted and repaired IMEI; CERT patch OK; after that reset FRP and reset to factory. Phone OK, Network OK; 5 Time reboot tried without problems. Google account registered and updated all applications. No firmware update. 1 boot after update: CUSTOM BINARY BLOCKED BY FRP LOCK How to solve??? Thx in advance.

03-30-2017, 11:12	#7 (permalink)
jahangir_123 Insane Poster Join Date: Apr 2014 Location: Shop # 34 HafeeZ Center, Posts: 86 Member: 2161392 Status: Offline Sonork: 100.1677520:hafiz Thanks Meter: 50	N920C 6.0.1 Reset FRP and unlock screen Done . System Ver: 6.0.1 REL API Level: 23 Incremental: N920CXXU3BPJ5 Model: SM-N920C Brand: samsung Device: noblelte Platform: exynos5 Searching Samsung USB Flash interface... COM7 detected Setup connection... Ok Reading PIT from phone... Ok Searching FRP lock... Ok Erasing FRP lock... Ok Reset done For complete reset FRP, goto 'Backup and reset' and make 'Factory data reset' Done with Samsung Tool PRO v.27.9

01-04-2017, 21:37	#2 (permalink)
66nakyoz Crazy Poster Join Date: Apr 2005 Age: 48 Posts: 54 Member: 136882 Status: Offline Thanks Meter: 16	No response, I go on trying (:-) Flashing the sboot and boot files from the used firmware let the phone boot again. But now there is a firmware update OTA that updates the Bootloader again and reactivates the FRP lock again. How to solve? Pls help Updating with full flash solves the FRp problem but then the Network is lost with repaired IMEI. Original IMEI + Official Firmware and the phoen works again like new (:-) But that's not what we want

01-04-2017, 22:49	#3 (permalink)
HndCivic99 Junior Member Join Date: Feb 2013 Posts: 8 Member: 1886649 Status: Offline Thanks Meter: 3	Make sure OEM Unlocking is checked, so you don't get the custom binary blocked by FRP

01-04-2017, 22:52	#4 (permalink)
zishhaider No Life Poster Join Date: Jan 2009 Location: Root tunnel Age: 36 Posts: 2,250 Member: 952111 Status: Offline Sonork: I'm not using now. Thanks Meter: 713	Root it..write cert.. flash again.. finished.. but keep in mind if knox tripped in such mobikes gives mobilecbettery drain issues now these days.

01-05-2017, 01:49	#5 (permalink)
66nakyoz Crazy Poster Join Date: Apr 2005 Age: 48 Posts: 54 Member: 136882 Status: Offline Thanks Meter: 16	OK finished. The new bootloader that comes over OTA definitively sees the patched imei part and quits function with FRP lock message. My solution was to update, root, repair and reset FRP again. After reset and disabled updates seems to work. OEM tick in developer snd disabling of security messages stopped the popups. Hope this helps. Thx again

01-05-2017, 02:05	#6 (permalink)
HndCivic99 Junior Member Join Date: Feb 2013 Posts: 8 Member: 1886649 Status: Offline Thanks Meter: 3	if I helped any please hit the thanks button