Here is a Adcom X28 stock ROM firmware (flash file) that y'all tin download as well as purpose to flash or charge stock firmware on your X28 device.
Though this Adcom X28 Stock ROM (flash file) has been checked as well as confirmed to run for Adcom X28, due to device variations, nosotros cannot guaranty that it volition run for yours.
Depending on your electrical current OS version, this Adcom X28 stock firmware, when flashed on your device, volition either upgrade, downgrade or unbrick your Adcom X28.
And inward either case, y'all volition approximately probable free all your of import files on the device, therefore, y'all necessitate to backup all the of import files on your device.
Adcom X28 Stock ROM Firmware Download Link(s)
See also: All Adcom Manito Stock ROM Firmware (Flash File)
How to Flash or Upgrade Adcom X28 Firmware
1. Download your Adcom X28 Stock ROM firmware from the link(s) above.
2. Download as well as install Windows device drivers for your Adcom X28. See here: All Android Devices ADB as well as Fastboot Drivers
3. Extract your Adcom X28 firmware on your PC.
4. Now, select either of the tools listed below here.
Either of the tools tin download as well as flash stock ROM firmware on your Adcom X28. I recommend that y'all select the ane that is approximately suitable to upgrade or flash your Adcom X28.
Note:
1. Each of the tools listed higher upward contained mensuration past times mensuration guides alongside illustrated pictures on how to flash stock firmware on your Adcom X28.
2. If y'all require whatever farther assistance, only drib your comment detailing the issue(s) as well as I shall assist y'all revive your Adcom X28 , if necessitate be.