Project

General

Profile

Actions

Bug #11952

open

Retevis RA89/P2/P62 - Chirp is not saving full contents of the EEPROM

Added by Justin Case 10 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
04/22/2025
Due date:
% Done:

0%

Estimated time:
Chirp Version:
next
Model affected:
Retevis RA89/P2/P62, TYT TH-UV99/TC-29
Platform:
MacOS
Debug Log:
I read the instructions above:
Yes

Description

I don't know if this is a bug or a feature, but Chirp is saving and writing only first 0x22A0 bytes worth of data from the memory of the above mentioned radios.
According to my experiments and information received from elsewhere, the size of the EEPROM chip in these is 4 kilobytes!

Most of the data past 0x22A0 contains only FF, but at the end of 4k's there is something that looks like OEM signature to me.

FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF |................|
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF |................|
54 59 54 44 58 43 FF FF FF FF FF FF FF FF FF FF |TYTDXC..........|

This might be important, but also might be not.

I've changed MEM_SIZE from 0x22A0 to 0x4000 in th_uv88.py module and created 4k dumps. Whoever is more knowledgable than me in what is going on inside these radios, please take a look.


Files

No data to display

Actions

Also available in: Atom PDF