Retevis RT95 25W Dual Band HAM Mobile Radio With Program Cable is small in size, easy to carry, and has an LCD display, which is deeply loved by customers.
However, some customers reported that the microphone gain of the RT95 mobile radio could not be adjusted or the microphone gain was low. This is because there are three versions of the RT95 car radio. The first version does not have VOX and cannot achieve microphone gain. The second version can upgrade the VOX function through software; the third version has this function and does not need to be upgraded.
1.How to judge the RT95 mobile radio version?
First version:
No VOX version (S/N code: before 202101, not applicable to this article).
Second version:
With VOX version, S/N code 202101-202312 (the operation and software in this article are only for the second version of RT95).
Third version:
With VOX version, the machine has MIC gain function setting and needn’t be upgraded, S/N code 202401 version.
2.Upgrade steps for the second version of RT95.
1. Install the upgrade software (QXCodePro_Update_Setup).
2. Upgrade the motherboard software: Press and hold the P3 key + PUSH key at the same time in the power-off state. Then connect the power supply, and the screen displays “UPDATE THE RF CPU” before the motherboard software can be upgraded. Click “Open Update File” on the computer to select the file. Select “Com Port”, select “Com Speed”: 115200, do not check “Duplex”。After connecting the frequency writing cable, click “Write” to upgrade the software.
3. Upgrade the panel software again: Press and hold the P1 key + PUSH key in the power-off state, then connect the power supply, the screen does not display (it will flash), and the panel software can be upgraded. Click “Open Update File” and select: “RT95 LCD (NG) V1.41 20231202.spi” file. Select “Com Port”, select “Com Speed”: 115200, do not check “Duplex”. After connecting the frequency writing cable, click “Write” to upgrade the software. After the upgrade is successful, you need to press the power button to restart.
Please note that before starting the update, please confirm whether your RT95 mobile radio can be updated. Please be careful when operating. If the RT95 car radio cannot be used normally due to personal updates, we cannot provide support and there is no firmware repair.
If you have other questions, please contact us.
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