youtube . com / watch?v=vBUaQ8Kpji4
The exploit for unlocking the boot loader has been patched...and you can not down grade with rsd unless your boot loader is unlocked you are pretty much stuck with a unrooted RAZR M if you are on the .15 update with a locked boot loader... You may soft brick or even brick your device if you attempt to downgrade with rsd... What are you wanting to flash with rsd?
We cannot teach people anything; we can only help them discover it within themselves.
I have a question,
When I had the jelly bean I unlocked the bootloader.
After the OTA 4.2.2 and the .15 update, I lost root, but I am not sure if is safe to use the RSD to downgrade.
When I turn on the phone I dont have the unlocked starting message, but if I go to fast boot, I see the code 3, unlocked.
Could you please let me know if I could use the RSD to downgrade, with no risk of bricking the phone?
I have to block the fast dormancy process becaouse I am out of USA, and this process is causing me issues, ( random re boots, battery drain etc).
Flash a custom recovery then flash superuser.