Yealink Forums
T21P E2 firmware upgrade - Printable Version

+- Yealink Forums (http://forum.yealink.com/forum)
+-- Forum: IP Phone Series (/forumdisplay.php?fid=4)
+--- Forum: Phone specific topic (/forumdisplay.php?fid=12)
+---- Forum: T2xP Series (/forumdisplay.php?fid=21)
+---- Thread: T21P E2 firmware upgrade (/showthread.php?tid=47296)



T21P E2 firmware upgrade - janp - 01-27-2024 02:43 AM

Hello,

I have a T21P E2 VoIP phone, which I would like to upgrade to a more recent firmware.
Current firmware is:
Firmware Version 52.80.0.130
Hardware Version 52.0.0.0.0.0.0

I downloaded firmware version T21P_E2-52.84.0.160.rom from Yealink support website.
I tried to flash the phone twice, but it didn't upgrade to a more recent firmware.
It stops at the message:
New firmware is installing... (on the phone LCD screen).

I left it idle for 1 hour, to not break the flashing process, but successfull flashing didn't work.

Do I need another firmware? How can I upgrade the firmware properly?