NckBox Spreadtrum Module 1.1: Alba 4 FRP Removal (BOOTloader issue) - GSM-Forum

SimonHayterUK · 04-27-2020, 16:18

Using NckBox Spreadtrum Module 1.1, I am unable to backup NVRAM or perform a FRP removal as it has problems locating the bootloader.

I have discovered the Alba 4 is a SC7731C using DIAG mode and simunlock I can do a NVRAM backup but unable to perform any Flash Mode Utils.

I am able to get to the bootloader performing VOL+Power Key and inserting the USB cable but it get WRITE ERRORS. A

Code:

EXE: NckBox Spreadtrum Module 1.1
SELECTED: SC7731C_EMMC
[0]ACTION: Boot Info
Start Detect phone...
Detected: SPRD U2S Diag (COM21)
Sending loader, keep boot key untill loader start.
Loader OK: Spreadtrum Boot Block version 1.1
Changing bautrate OK.
Send Second Loader.
Error write mod: 00000054
Wrong responce.
Reading wfixnv1
Error write mod: 00000054
Total Time: 00:00:21
Done.

DIAG MODE

Code:

Using connection mode 2
Detected: SPRD U2S Diag (COM21)
Platform Version MOCORTM_W17.33.5_DebugProject Version   sc7731C_CP0_modemBASE  Version    TM_BASE_W17.33.5HW Version        sc7731C_CP0_modem08-17-2017 210254
Build number: sp7731c_fs280_project-user 7.0 NRD90M eng.releas.20170922.144135 release-keys
IMEI 1: 3598660809XXXXX
IMEI 2: 3598660809XXXXX
Serial number: 247960661XXXXX
BT: 146B72AXXXXX
WIFI: 146B72XXXXX
Done.

READ SIMLOCK

Code:

ACTION: Read Simlock Info.
Detecting phone, wait...
Phone must be off.
Connect usb cable without pressing any key.
Using connection mode 2
Detected: SPRD U2S Diag (COM21)
Platform Version MOCORTM_W17.33.5_DebugProject Version   sc7731C_CP0_modemBASE  Version    TM_BASE_W17.33.5HW Version        sc7731C_CP0_modem08-17-2017 210254
Build number: sp7731c_fs280_project-user 7.0 NRD90M eng.releas.20170922.144135 release-keys
IMEI 1: 359866080XXXXXX
IMEI 2: 359866080XXXXXX
Serial number: 24796066XXXXX
BT: 146B72XXXXXX
WIFI: 146B72XXXXX
Reading simlock backup, wait....
Saved to: C:\Users\Presu\Documents\spreadtrum_module\backup\spd_simlock_nvram_backup\35986608XXXXXX_24796066XXXXX_diag_simlock_nvram_backup.tar
[0]Unsupported simlock, aborting....
[0]Unsupported Simlock Type
Done.

Any ideas what could be wrong?

**orbita** · 04-27-2020, 16:23

Posible phone not accept build in exe loader and need to use external loader.
Exe have this posibility.
In diagnostic mode is not posible to remove frp.

SimonHayterUK · 04-27-2020, 17:25

Quote:

Originally Posted by orbita

Posible phone not accept build in exe loader and need to use external loader.
Exe have this posibility.
In diagnostic mode is not posible to remove frp.

Where would one expect to find loaders from? I see you get a few with NCK but nothing seems to match the phone I have. Does it need to be extracted from a ROM or something?

**orbita** · 04-27-2020, 18:26

In last exe tab exists button called make custom loader.
And yes, you can make loader from pac firmware.

04-27-2020, 16:23	#2 (permalink)
orbita Product Manager Join Date: Apr 2002 Location: nckDongle Posts: 13,325 Member: 11170 Status: Offline Sonork: 1603694 Thanks Meter: 6,944	Posible phone not accept build in exe loader and need to use external loader. Exe have this posibility. In diagnostic mode is not posible to remove frp.

04-27-2020, 18:26	#4 (permalink)
orbita Product Manager Join Date: Apr 2002 Location: nckDongle Posts: 13,325 Member: 11170 Status: Offline Sonork: 1603694 Thanks Meter: 6,944	In last exe tab exists button called make custom loader. And yes, you can make loader from pac firmware.