Here is a Adcom 721C stock ROM firmware (flash file) that you lot tin plow over notice download in addition to hold out to flash or charge stock firmware on your 721C device.
Though this Adcom 721C Stock ROM (flash file) has been checked in addition to confirmed to piece of job for Adcom 721C, due to device variations, nosotros cannot guaranty that it volition piece of job for yours.
Depending on your electrical flow OS version, this Adcom 721C stock firmware, when flashed on your device, volition either upgrade, downgrade or unbrick your Adcom 721C.
And inward either case, you lot volition well-nigh probable unloose all your of import files on the device, therefore, you lot postulate to backup all the of import files on your device.
Adcom 721C Stock ROM Firmware Download Link(s)
See also: All Adcom Manito Stock ROM Firmware (Flash File)
How to Flash or Upgrade Adcom 721C Firmware
1. Download your Adcom 721C Stock ROM firmware from the link(s) above.
2. Download in addition to install Windows device drivers for your Adcom 721C. See here: All Android Devices ADB in addition to Fastboot Drivers
3. Extract your Adcom 721C firmware on your PC.
4. Now, direct either of the tools listed below here.
Either of the tools tin plow over notice download in addition to flash stock ROM firmware on your Adcom 721C. I recommend that you lot direct the i that is well-nigh suitable to upgrade or flash your Adcom 721C.
Note:
1. Each of the tools listed higher upward contained measuring past times measuring guides amongst illustrated pictures on how to flash stock firmware on your Adcom 721C.
2. If you lot require whatsoever farther assistance, exactly drib your comment detailing the issue(s) in addition to I shall assist you lot revive your Adcom 721C , if postulate be.