samsung J730 [Answered] - GSM-Forum

goondy · 05-20-2020, 08:11

Hi dear team
i have a J730 for FRP U6 binary 9.0 i tried to flash it but couldnt

ARN : 19.5.2020 г/ 17:18:43 > Please put the phone into Download Mode and connect USB cable.
WARN : 19.5.2020 г/ 17:18:43 > To put SM-J730F into Download Mode, You have to perform the following steps:
WARN : 19.5.2020 г/ 17:18:43 > 1. Press and hold "Volume-" + "Home" + "Power ON" keys.
WARN : 19.5.2020 г/ 17:18:43 > 2. When phone turns on, press "Volume+" key.
INFO : 19.5.2020 г/ 17:21:15 > Found phone on
WARN : 19.5.2020 г/ 17:21:15 > Advanced mode!
INFO : 19.5.2020 г/ 17:21:33 > Firmware write started.
INFO : 19.5.2020 г/ 17:21:33 > Writing BOOTLOADER section...
INFO : 19.5.2020 г/ 17:21:34 > BOOTLOADER section has been written successfully.
INFO : 19.5.2020 г/ 17:21:34 > Writing PARAM section...
INFO : 19.5.2020 г/ 17:22:19 > PARAM section has been written successfully.
ERROR : 19.5.2020 г/ 17:22:29 > Writing Firmware Failed
INFO : 19.5.2020 г/ 17:22:29 > Performed by 2.9.4 Software version.
Log file "C:\Program Files\Octoplus\Octoplus_Samsung\LOG\19-05-2020_16-52-54.log" closed (19.5.2020 г/ 17:23:57).

need help how to downgrade it

Octopus box · 05-20-2020, 08:52

Hello.

Problem with reset of FRP lock can occur if phone has one of the latest firmwares. Samsung disabled ability to remove FRP lock in latest firmwares.

There are few methods, of how to reset FPR on phones with latest firmwares:

I.

Try to use our Factory Reset FRP Service.
For more detail information and prices, please check Credits consumption

II.

Try to write SBoot file of older firmware.
Repeat "Reset FRP/Reactivation/EE" operation.

III.

Write "boot.img" partition from appropriate Combination firmware via "Advanced mode" option (select Combination firmware, un-check partitions except "boot.img").
Perform "Reset FRP" operation in Software.

IV.

Write Full Combination Firmware.
Go to "Developer Options" in phone Settings.
Check "Enable OEM unlock" option.
Make Factory Data Reset.
Reflash the phone with full stock (orignal) firmware.

Note: "boot.img" from Combinataion firmwares can be not compatible with current phone's firmware. In such case phone will stuck on logo, or will be rebooting after writing of such boot. In this case to restore the phone to it's initial condition You need to reflash it with different full stock (original) firmwares (or try to write only boot of such firmwares).
Note: You can write "boot.img", Combination firmware or to downgrade phone's firmware version only on your own risk!

05-20-2020, 08:11	#1 (permalink)
goondy No Life Poster Join Date: Nov 2005 Location: Bulgaria Smolyan Posts: 861 Member: 203747 Status: Offline Thanks Meter: 94	samsung J730 [Answered] Hi dear team i have a J730 for FRP U6 binary 9.0 i tried to flash it but couldnt ARN : 19.5.2020 г/ 17:18:43 > Please put the phone into Download Mode and connect USB cable. WARN : 19.5.2020 г/ 17:18:43 > To put SM-J730F into Download Mode, You have to perform the following steps: WARN : 19.5.2020 г/ 17:18:43 > 1. Press and hold "Volume-" + "Home" + "Power ON" keys. WARN : 19.5.2020 г/ 17:18:43 > 2. When phone turns on, press "Volume+" key. INFO : 19.5.2020 г/ 17:21:15 > Found phone on WARN : 19.5.2020 г/ 17:21:15 > Advanced mode! INFO : 19.5.2020 г/ 17:21:33 > Firmware write started. INFO : 19.5.2020 г/ 17:21:33 > Writing BOOTLOADER section... INFO : 19.5.2020 г/ 17:21:34 > BOOTLOADER section has been written successfully. INFO : 19.5.2020 г/ 17:21:34 > Writing PARAM section... INFO : 19.5.2020 г/ 17:22:19 > PARAM section has been written successfully. ERROR : 19.5.2020 г/ 17:22:29 > Writing Firmware Failed INFO : 19.5.2020 г/ 17:22:29 > Performed by 2.9.4 Software version. Log file "C:\Program Files\Octoplus\Octoplus_Samsung\LOG\19-05-2020_16-52-54.log" closed (19.5.2020 г/ 17:23:57). need help how to downgrade it

05-20-2020, 08:52	#2 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,813 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,407	Hello. Problem with reset of FRP lock can occur if phone has one of the latest firmwares. Samsung disabled ability to remove FRP lock in latest firmwares. There are few methods, of how to reset FPR on phones with latest firmwares: I. Try to use our Factory Reset FRP Service. For more detail information and prices, please check Credits consumption II. Try to write SBoot file of older firmware. Repeat "Reset FRP/Reactivation/EE" operation. III. Write "boot.img" partition from appropriate Combination firmware via "Advanced mode" option (select Combination firmware, un-check partitions except "boot.img"). Perform "Reset FRP" operation in Software. IV. Write Full Combination Firmware. Go to "Developer Options" in phone Settings. Check "Enable OEM unlock" option. Make Factory Data Reset. Reflash the phone with full stock (orignal) firmware. Note: "boot.img" from Combinataion firmwares can be not compatible with current phone's firmware. In such case phone will stuck on logo, or will be rebooting after writing of such boot. In this case to restore the phone to it's initial condition You need to reflash it with different full stock (original) firmwares (or try to write only boot of such firmwares). Note: You can write "boot.img", Combination firmware or to downgrade phone's firmware version only on your own risk!