M8550: 5G Mobile Wi-Fi with Touch Screen

M8550: 5G Mobile Wi-Fi with Touch Screen

68 Reply
Re:M8550: 5G Mobile Wi-Fi with Touch Screen
2025-09-18 10:45:55
Yes, i unzipped the downloaded file
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#65
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
2025-09-18 10:50:49
Hi David, thank you for the info. In fact, i have my M8550 from ISP o2 in Germany. I thought there was only a standard version. Where can i find firmware for my Router or is it possible to flash Standard Version?
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#66
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
2025-09-19 03:51:06

  @spatze 

Hi, it can't flash to the standard version, but a similar firmware will be pushed to the ISP version as well.

If you're in a hurry, I think you can contact O2 to see if there is a backup bin file available for manual upgrade.

Thank you very much.

Best regards.

 

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#67
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
2025-09-19 08:02:16

  @David-TP 

Thank you very much. II'll contact o2 for Firmware-Update. 

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#68
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
3 weeks ago - last edited 3 weeks ago

  @David-TP 

Bug report (seen this reported in a previous post as well):

 

The LCD screen does not fully turn off! The backlight is always on when the screen is off.

 

Please fix asap.

 

I'm on firmware Build 250426, firmware check says it's the latest version.

 

When I try to manually update firmware to either Build 250704 or Build 250814, it says Error 4503 The uploaded file was not accepted (yes I unzipped it and uploaded the bin file). I purchased my unit from Amazon.de.

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#69
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
2 weeks ago

  @Androidlad 

Hi, may I know your SIM carrier?

I saw there was a customized firmware version for O2 with the same build number 1.1.0 3.0.0 v60d8.0 Build 250426 Rel.66882n.  I think you might have customized hardware that caused the failure of the firmware upgrade.

Could you please leave me a message with the MAC address of your M8550?

Wait for your reply.

Best regards.

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#70
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
2 weeks ago

  @David-TP 

Hi, the SIM carrier is Clear Mobile (Vodafone) in Ireland.

 

I bought it from Amazon.de, it's official Amazon seller I think, are they allowed to sell customised hardware?

 

I've sent you a message with my device's MAC address

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#71
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Re:M8550: 5G Mobile Wi-Fi with Touch Screen
a week ago

  @David-TP 

 

At first i think it's a realy a nice small 5G-Router.

I will test it this weekend at a race on the Nürburgring Nordschleife.


Would it be possible to add a guest-WLan with a own ip-range, and maybe reduced WLan-speed and cellular-volume?

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#72
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