Asus ZC520TL (MT6737T) Unlock Bootloader by MTKclient
Asus ZC520TL (MT6737T) Unlock Bootloader by MTKclient
25-10-2023, 01:33 PM
(24-10-2023, 04:04 AM)jrlaborda49 No.
Device was bricked, with Android O, but I used SP Flash tools to unbrick it by installing stock rom (M 13.0.1.33) successfully. Then, updates from M for N and N for O, all through stock recovery.
Due to performance, I chose to downgrade to M, which I did using SP Fash tools, directly from O to M. Problems arose in NVRAM (lost IMEI/SN)
Now I want root to facilitate repairs but I can't unlock the bootloader.
You can repair IMEI without unlocking bootloader.
Is baseband valid or visible?
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26-10-2023, 03:15 PM
(25-10-2023, 01:33 PM)maxpayne(24-10-2023, 04:04 AM)jrlaborda49 No.
Device was bricked, with Android O, but I used SP Flash tools to unbrick it by installing stock rom (M 13.0.1.33) successfully. Then, updates from M for N and N for O, all through stock recovery.
Due to performance, I chose to downgrade to M, which I did using SP Fash tools, directly from O to M. Problems arose in NVRAM (lost IMEI/SN)
Now I want root to facilitate repairs but I can't unlock the bootloader.
You can repair IMEI without unlocking bootloader.
Is baseband valid or visible?
imei is no longer a problem, I already fixed it with "SN Writer Tool". However, to regain access to the networks, I need to restore the "Data" folder in the Nvram Partition. In the subfolder Data/Nvram/Apcfg/Aprdeb are the Wifi and Wifi Custom files, both essential for connecting networks....... And this operation is only possible with root/custom recovery.
27-10-2023, 06:03 AM
(26-10-2023, 03:15 PM)jrlaborda49 imei is no longer a problem, I already fixed it with "SN Writer Tool". However, to regain access to the networks, I need to restore the "Data" folder in the Nvram Partition. In the subfolder Data/Nvram/Apcfg/Aprdeb are the Wifi and Wifi Custom files, both essential for connecting networks....... And this operation is only possible with root/custom recovery.
It doesn't look like the seccfg patch works on this model. You could try getting an Nvram and Nvdata backup from another phone (same model) and flash
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