Write Cert Not Supported... A520F... HELP!! [Answered] - GSM-Forum

dixx · 07-22-2020, 22:58

Platform: Samsung Android
Selected port: COM3
Selected model: SM-A520F
Operation: Write Cert
Detected phone model: SM-A520F
Firmware compiled date: Thu Apr 30 09:57:33 KST 2020
PDA version: A520FXXUECTDA
CSC version: A520FOXXECTD6
SW version: A520FXXUECTDA
Build number: QB15759561
Phone SN: R58J8
Android version: 8.0.0 (R16NW)
Sales code: ETL
Country: Czech Republic
HW platform: exynos5
HW Chip: exynos7880
HW Modem: SHANNON325
Security patch level: 2020-05-01
Warranty Void: 0
SIM 1 status: absent
Codename: a5y17ltexx
-----------------------------------------------------------------------------------
Connecting to server ..
Username: gsmszervizpont_01
Connect to server successfull.
Checking smart card...
Your balance: 130 credits.
-----------------------------------------------------------------------------------
Checking operation...failed
Device's modem A520FXXUECTDA (QB15759561) is not supported!
Writing Certificate failed
Performed by 2.9.6.2 Software version.

dixx · 07-22-2020, 23:00

Also modem downgrade not working. Even with flashing PHONE from combination or user firmware.

Any root for this version? I like try to flash modem with ADB

Octopus support · 07-23-2020, 07:26

Hello.

Unfortunately, currently is not supported.

Quote:

Device's modem A520FXXUECTDA (QB15759561) is not supported!

Quote:

Security patch level: 2020-05-01

dixx · 07-24-2020, 09:29

Do you have any root for it?
I downgrade modem via adb but need root.

allumts · 11-06-2020, 13:17

Quote:

Originally Posted by dixx

Do you have any root for it?
I downgrade modem via adb but need root.

You always not know MAGISK?

Good, try of root with MAGISK, 100% rotted. Read carefully: magiskmanager

But if at the end isn't Supported from OCTOPLUS what want do with root?

dixx · 12-07-2020, 18:02

Quote:

Originally Posted by allumts

You always not know MAGISK?

Good, try of root with MAGISK, 100% rotted. Read carefully: magiskmanager

But if at the end isn't Supported from OCTOPLUS what want do with root?

Yes I have faced the problem. No way to downgrade modem to lower bit unfortunately, so no any real update on samsung side on any box. Just the credit based read codes bla bla updates. There are many other circumstances where need other service options and there are many regions where phones sold unlocked so keep this in mind. More importatant to support new bits and security patches/updates. And this one is not the latest for the A520F. Why don't support any version of this old not valuable phone which was released in 2017 (3years ago)

07-22-2020, 22:58	#1 (permalink)
dixx Freak Poster Join Date: Dec 2006 Location: Hungary Posts: 430 Member: 407451 Status: Offline Thanks Meter: 29	Write Cert Not Supported... A520F... HELP!! [Answered] Platform: Samsung Android Selected port: COM3 Selected model: SM-A520F Operation: Write Cert Detected phone model: SM-A520F Firmware compiled date: Thu Apr 30 09:57:33 KST 2020 PDA version: A520FXXUECTDA CSC version: A520FOXXECTD6 SW version: A520FXXUECTDA Build number: QB15759561 Phone SN: R58J8 Android version: 8.0.0 (R16NW) Sales code: ETL Country: Czech Republic HW platform: exynos5 HW Chip: exynos7880 HW Modem: SHANNON325 Security patch level: 2020-05-01 Warranty Void: 0 SIM 1 status: absent Codename: a5y17ltexx ----------------------------------------------------------------------------------- Connecting to server .. Username: gsmszervizpont_01 Connect to server successfull. Checking smart card... Your balance: 130 credits. ----------------------------------------------------------------------------------- Checking operation...failed Device's modem A520FXXUECTDA (QB15759561) is not supported! Writing Certificate failed Performed by 2.9.6.2 Software version.

07-22-2020, 23:00	#2 (permalink)
dixx Freak Poster Join Date: Dec 2006 Location: Hungary Posts: 430 Member: 407451 Status: Offline Thanks Meter: 29	Also modem downgrade not working. Even with flashing PHONE from combination or user firmware. Any root for this version? I like try to flash modem with ADB

07-24-2020, 09:29	#4 (permalink)
dixx Freak Poster Join Date: Dec 2006 Location: Hungary Posts: 430 Member: 407451 Status: Offline Thanks Meter: 29	Do you have any root for it? I downgrade modem via adb but need root.