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+--- Thread: OEM Firmware change (/showthread.php?tid=45052)
OEM Firmware change - NotKnown - 04-14-2021 06:10 PM
Hello, I have an T48S with an firmware of Vodafone (Netherlands). (66.84.133.3)
But that firmware doesnt work with Broadsoft of Routit/KPN.
When i try to flash the normal firmware of Lydis (dutch supplier) or Yealinks, it ends in an error:
Firmware update failed!
OEM version different
Rebooting, please wait...
When trying this in RecoveryMode, via USB it doesnt work, also via TFTP end in error -1 or file to big
Does anyone have idea to fix this?
RE: OEM Firmware change - complex1 - 04-14-2021 07:41 PM
(04-14-2021 06:10 PM)NotKnown Wrote: Hello, I have an T48S with an firmware of Vodafone (Netherlands). (66.84.133.3)
But that firmware doesnt work with Broadsoft of Routit/KPN.
When i try to flash the normal firmware of Lydis (dutch supplier) or Yealinks, it ends in an error:
Firmware update failed!
OEM version different
Rebooting, please wait...
When trying this in RecoveryMode, via USB it doesnt work, also via TFTP end in error -1 or file to big
Does anyone have idea to fix this?
Hi,
I think your carrier has locked the phone.
You have to ask them to unlock the phone, maybe then you can change the firmware.
Only use recovery mode if the phone is bricked.
Hope this will help.