CHIRP

Let's use this one for the tail mode thing. Same procedure with the images, if you can please.

btw, here is the list of Optional Features in OEM software and their modes...

A Channel Display: Channel, Frequency, Name
B Channel Display: Channel, Frequency, Name
Main Channel A/B: A, B
Dual Wait: Off, On
DW Transmit CH: Current Edit, Current Activity
VFO/MR: MR, VFO
Channel Mode: Off, On
Power on display mode: Off, DC, MSG
Power on Message: 7 characters max
Voice Broadcast: Off, On
Beep: Off, On
Roger Tone: Off, On
Batery Save: Off, On
Squelch Level: values from 0 to 9
Step (kHz): 2.5, 5, 6.25, 10, 12.5, 25, 50, 100
TOT (s): Off, 30, 60, 90, 120, 150, 180, 210, 240, 270
Scan Mode: Time, Carrier, Seek
Radio Monitor: Off, On
ANI: Off, On
Tail Eliminate: Off, On
Tail Mode: Frequency, 120, 180, 240
Lamp Mode: Off, Key, Continue
Lamp Time (s): values from 1 to 10
Lamp Color: values from 1 to 3
Vox Gain Level: values from 1 to 9
Vox Delay Time (s): values from 1 to 4
Key Lock: On, Off
Lock Mode: PTT, Key, K+S, All
Auto Lock: Off, On
A Work Area: A, B
B Work Area: A, B

MELERIX . wrote in #note-7:

Tail Mode: Frequency, 120, 180, 240

MELERIX. Please supply two or 3 CHIRP Radio Image (*.img) files, the only difference between them being the 'Tail Mode' setting. One set to 120, another set to 240 and possibly one set to 180.

I got the tail eliminate flag. However, all the tail mode variants of the file seem identical. For example:

$ md5sum TYT_TH-UVF8D_20230211\ \(Tail\ Eliminate\ _On_\ +\ Tail\ Mode\ _Frequency_\).img TYT_TH-UVF8D_20230211\ \(Tail\ Eliminate\ _On_\ +\ Tail\ Mode\ _180_\).img
9753cf76b0737bf21aa63d080cf4c3a8  TYT_TH-UVF8D_20230211 (Tail Eliminate _On_ + Tail Mode _Frequency_).img
9753cf76b0737bf21aa63d080cf4c3a8  TYT_TH-UVF8D_20230211 (Tail Eliminate _On_ + Tail Mode _180_).img
dan@theine ~/Downloads$

seems is a bug, because it also happens in the OEM software, because I've put again "120" and saved the radio in OEM software, then closed the OEM software, then I've opened it again, and load the radio again, and tail mode is still in "Frequency" mode, so maybe only that mode works for tail eliminate.

Okay, so should I close this or are you working on additional images to help find the tail mode bits?

yes, it can be closed I guess for now, due the other modes does not work in oem software either, so only Frequency mode works for tail mode.