Latest firmware for RM551E-GL

h_z · May 3, 2025, 6:00am

can you send latest firmware for RM551 to me
email : hassanalzahrani7@gmail.com

Jonathan.wang · May 6, 2025, 1:01am

Hi @h_z

What is your current firmware version? you may check via ATI command

Tirkiz · May 6, 2025, 5:44am

Hi, I bought this RM551E-GL

Is there a newer FW than the current one?

ATI
Quectel
RM551E-GL
Revision: RM551EGL00AAR01A02M8G

Thanks

silvia · May 8, 2025, 2:04am

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

Star_Chipe · May 8, 2025, 6:09am

Hi @silvia , My version: RM551EGL00AAR01A01M8G
can you send me the last 2 version to my email
02 and 03 fw

my email : sha67u@gmail.com
many thanks

VNIURE3 · May 8, 2025, 7:49am

Hi @silvia , My version: RM551EGL00AAR01A01M8G
can you send me the last 2 version to my email
02 and 03 fw

my email : sha67fm@gmail.com
many thanks

silvia · May 9, 2025, 7:59am

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

silvia · May 9, 2025, 7:59am

Dear @VNIURE3
I have sent to your email, please check.

comconcepts · May 10, 2025, 7:08am

@silvia Please let your team know, that ADB support is a requirement for many projects and our internal testing. I hope very much that newer firmware will re-enable ADB support. As of now, we will stay on version A02.

silvia · May 12, 2025, 6:22am

Dear @comconcepts
It seems there is some understanding, ADB just be disabled by default, not as you mentioned not support.

Acure_Forall · June 2, 2025, 6:58pm

How come newer firmware won’t utilize 4ca on tmhi? Old firmware from November/december 2024 works fine though.

silvia · June 4, 2025, 3:29am

Dear @Acure_Forall
Please list your firmware version.

cevadaroses · June 4, 2025, 6:01am

Hi what is the lastest firmware on M60K63 i never upgreade the firmware my current virsion is 2.3.1-20241231-065328 also i want to mention i only get 3x carrier aggregation insted on 4x could you please help

Jonathan.wang · June 5, 2025, 2:11am

Hi @cevadaroses

Please specify your module name and firmware version, or you can upload a photo of the module. Much appreciation.

cevadaroses · June 5, 2025, 4:30am

the module is RM551E-GL SDX75 FW version is 2.3.1-20241231-065328

iamromulan · June 5, 2025, 5:05am

I would recommend staying with December firmware.

github.com/iamromulan/cellular-modem-wiki

quectel/sdxpinn/T-Mobile_RM551EGL_patches.md

main

Quectel Modem Wiki
=================================
> :book: This is a living Wiki. Changes may be made as more discoveries are made or more community software is made. If you feel like you have information to contribute to this wiki please open a pull request.

# RM551E-GL T-Mobile NR SA 4CA Patches

>:bulb: This is method is working on Quectel Base firmware on or before December 2024 and all iamromulan custom firmware. Stock March firmware should be avoided.  

If your RM551E-GL is having trouble getting 4xCA on SA NR on the default T-Mobile MBN: `Commercial-TMO` or the generic (more stable) MBN `ROW_Commercial` then you'll want to add a file to the EFS. This can be achieved through QPST's EFS browser (Installable via [QuecDeploy](https://github.com/iamromulan/quecdeploy/)) or more simply by using the AT+QNV AT command set.

## Commercial-TMO MBN patch

Send the following command to create a new file/overwrite a file in the EFS with the HEX contents you want. 

Send this command to add the file that gets 4xCA working 
`AT+QNVFW="/mdb/nr/plmn2cacombos_nr.mdb",010175516c616f636d6d000000000000000000000000000000000000020001015ab106bb002f00006a34519700000000001b0000002000009c786163606000e009e2408c014206c2248161060d3015000179113b17007800cb9c3233d47533cd7431920686e6d68e000c01281a04`

 Then reboot `AT+CFUN=1,1`

If you don't have 4xCA it either means the cell site you are at does not have 4xCA or you need to reboot again.

This file has been truncated. show original

cevadaroses · June 5, 2025, 5:31am

(post deleted by author)

cevadaroses · June 5, 2025, 6:32am

Thank you bro you are the GOAT this was exactly what i needed

Acure_Forall · June 29, 2025, 12:42pm

I rolled back to this firmware and 4ca works:
RM551EGL00AAR01A02M8G

I was using the new firmware and it didn’t work:
RM551EGL00AAR01A03M8G

When does RM551EGL00AAR01A04M8G come out and will it fix the problem with obtaining 4ca on tmhi in the United States?

Explore0257 · June 29, 2025, 7:59pm

Good luck with A04. I asked them in a PM and they told me no plans for new revision right now.