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Forum Discussion
MR5200 won't attach to n77 after firmware update - multiple questions!
I have a number of MR5200 that I use for testing locally on a local network... The old firmware (NTGX55_10.29.11.00) worked really well on my band 3 / n77 5G NSA setup however a newer firmware that g...
Same problem
After upgrade to NTGX55_12.03.09.00
I can only use 4G+
Before upgrade, I can use 5G with china telecom and china unicom.
Also in model.json,
i get same result:
"nr5gsigRsrp": "-32768 dBm",
"nr5gsigRsrq": "-32768 dB",
"nr5gsigSnr": "-3276 dB"
jzz15 wrote:
Same problem
After upgrade to NTGX55_12.03.09.00
I can only use 4G+
Before upgrade, I can use 5G with china telecom and china unicom.
Also in model.json,
i get same result:
"nr5gsigRsrp": "-32768 dBm",
"nr5gsigRsrq": "-32768 dB",
"nr5gsigSnr": "-3276 dB"We have a MR release coming out next week to address the issue. Please standby.
Thanks John Peng!
Hope new firmware can fix this!
because my iPhone12 Pro(also qualcomm x55) works fine with 5G at same place.
Just an update for anyone that reads this thread - a lot of the detail was taken into private messages with John Peng - a regression was found in driver versions which John and his team produced a testing version of firmware for the devices I was using (circa 20-30 units) and also fixed another MTU related issue too that hopefully is being resolved into the public release he has mentioned above.
Massive thanks are due to John and his team who worked on a fix far quicker than I was expecting.