Retevis RA89 Firmware Upgrade

If you are looking to upgrade your RA89, then today's article will be very helpful.

Problems you can solve by performing a firmware upgrade

Fixing the inconsistency between channel storage and manual operation;

Add Mic Gain menu to host and software;

Write frequency software to add side key short press and long press function.

Solution: Level 1 and 2 backlight brightness change problem

Solution: Setting 34 items doesn't work for radio, DW on and DW off are the same..., can't hear intercom calls when radio is on

Specific process

Preparation

1. Prepare the software to be updated

2. Programming cable and computer

3. A RA89 walkie-talkie

Operation steps

1. When the power is off, please press the PTT key and turn on the walkie-talkie at the same time, the LED will show Update... to enter the upgrade mode.

2. Open the update software, select the correct COM port as shown in Figure ①, and set the baud rate to 57600 as shown in Figure ②.

3. Click Open to open the firmware file as shown in Figure ③.

4. Click Update to update as Figure ④

5. After the upgrade is successful, the walkie-talkie will turn on automatically as shown below.

As shown in the following figure

After completing the above operations, you have finished upgrading the firmware of RA89.

Retevis RA89 is a IP68 waterproof dual-band high-power walkie-talkie released this year. After the release, it has been loved by many customers.

The RA89 has high power and you can also adjust the power level (high, medium or low) as needed. Theoretically it can reach up to 5 kilometers and the RA89 is available in two UHF and VHF bands. The IP68 rating allows the RA89 amateur radio enthusiast to be immersed in water up to 1.5 meters deep for up to 30 minutes. This is also an important feature for preppers.

For even better performance you can get it in the ways described above.

Download Software Updates

https://www.retevis.com/ra89-high-power-dual-band-ip68-waterproof-ham-radio-us

Click [support] and select [FIRMWARE/SOFTWARE] to obtain the update file