Latest firmware for RG255C-GL?

silvia · August 8, 2025, 5:36am

Dear @Dragos_Anca
I have sent to your email, please check.

busdriver · October 27, 2025, 7:00pm

Hi,
we’ve got modem with RG255CGLABR01A04M4G_A0.003.A0.003. Can you please provide newest firmware if available.
Thanks

Jonathan.wang · October 28, 2025, 2:01am

Any issue with current firmware version?

busdriver · November 5, 2025, 11:50am

Hi, I am still testing. There are problems with Windows MBIM driver (stops working) and settings for public APN can’t be detected automatically. But with QMI driver and some AT commands it registers in 5G SA (Europe). I just saw here in forum there is firmware RG255CGLABR01A04M4G_A0.004.A0.004. Any improvements in there?
Thanks

silvia · November 7, 2025, 2:51am

Dear @busdriver
I have sent the latest firmware to your email, please check.
For MBIM, it is not supported in commercial, please don’t test it.

Jameel_Ali · November 27, 2025, 9:52am

Hi,

I have this modem info:

Quectel
RG255C-GL
Revision: RG255CGLABR01A04M4G

AT+QGMR?
RG255CGLABR01A04M4G_A0.003.A0.003

Is this the latest firmware version?

I tried to set the modem to work with QMI by setting the usbnet,0, but it is not working.

Please, any help!

uname -a
Linux redcap 6.12.57+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.57-1 (2025-11-05) x86_64 GNU/Linu

silvia · November 28, 2025, 2:04am

Dear Sir,
I have sent to your email, please check.

Jameel_Ali · December 1, 2025, 5:43pm

Thank you.

I have another modem.

Could you please send me the latest firmware?

ati
Quectel
RG255C-GL
Revision: RG255CGLABR01A04M4G

OK
at+qgmr
RG255CGLABR01A04M4G_A0.004.A0.004

silvia · December 3, 2025, 6:26am

Dear @Jameel_Ali
From the firmware version, they use the same version.

rich_hathaway · December 12, 2025, 1:36pm

Hello, can I also please get the latest firmware for it?
My current revision is
[2025-08-06_11:21:03:912]Quectel
[2025-08-06_11:21:03:912]RM255C-GL
[2025-08-06_11:21:03:912]Revision: RM255CGLAAR01A03M2G

Jonathan.wang · December 15, 2025, 2:19am

Anything wrong with your current firmware version? Please specify

rich_hathaway · December 15, 2025, 11:43am

seems buggy, and slows at times but reboot seems to get full speed back, was hope that latest firmware would resolve it

silvia · December 16, 2025, 1:32am

Dear @rich_hathaway
I have sent to your email, please check.

rich_hathaway · December 16, 2025, 3:22pm

@silvia Thank you very much!

FRubio · December 19, 2025, 8:17pm

Hello, I currently have RG255CGLABR01A04M4G and am looking for FW version RG255CGLABR01A09M4G, thank you very much.

silvia · December 22, 2025, 7:18am

Dear @FRubio
We don’t have R01A06, the latest one is R01A05, do you want it?

zazo · February 14, 2026, 1:49pm

Hello , could you please send me the latest firmware for my revision of RG255 ?

RG255CGLABR01A04M4G

Best Regards
George