Anytone at-5555n II (version 2)

[wpginterceptor]

No, extended VHF is only available on the short case version.

Yes, the "official release" firmware is good to go, but it is the older factory firmware that does NOT include the latest features. It was added here in case anyone wished to roll back, for any reason.

If you want the latest and full feature set available, use the latest and final firmware version linked below. (It has proven to be safe with no issues reported so far, despite the general warnings I had to add to the post):

Post in thread 'Anytone at-5555n II (version 2)'

Jul 22, 2025

Hi all,

As you may know, the original LONG case Anytone AT-5555Nii radio is now discontinued and has been replaced by the new SHORT case AT-5555Nii radio.

Although the LONG case radio is discontinued, an updated AT-5555Nii LONG CASE firmware was worked on in 2024 that adds many new features, however it was not (and will not be) officially released as there is a potential that some early versions of the long case radio may be incompatible due to component changes that were made along the way.

However, with some clear points and caveats, I can share this BETA firmware.

Please...

• Pez

• 
• 

ok so the beta is the MODIFIED version and USE AT YOUR OWN RISK. and the LATEST/FINAL FIRMWARE is the original version in case the BETA version doesnt work on your radio.. YES?

 

[BC Coyote]

ok so the beta is the MODIFIED version and USE AT YOUR OWN RISK. and the LATEST/FINAL FIRMWARE is the original version in case the BETA version doesnt work on your radio.. YES?

No need to yell. That is correct....the beta is the updated software to run on the "long case" 5555N2 which gives it most of the abilities of the short case version. The other software posted later in the thread is to roll back to the original firmware if you have problems.

The upgrading process is very very easy. Follow Pez' instructions exactly and you won't have any problems. Note that some very early 5555N2's may have issues with the upgrade...the info on which those are is in the thread too. Good Luck!