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The network (H+) is periodically lost when the data is switched on.

Open IvvanVG opened this issue 8 years ago • 11 comments

The network (H+) is periodically lost when the data is switched on.

  • ROM build version (date): 20170904 and older, clear installation on zui 2.5.412
  • Baseband version: M8996FAAAANAZM-1.70664.3.76387.1 The network is stable on baseband from android M (9-00009-M8996FAAAANAZM-1.53476.1 and other) and when the data is switched off.

logcat.txt radio.txt

Screenshots image alt image alt image alt

IvvanVG avatar Aug 03 '17 08:08 IvvanVG

The network is stable on modems from 6 android (9-00009-M8996FAAAANAZM-1.53476.1 and other)

I understand this modem is older than M8996FAAAANAZM-1.70664.3.76387.1, right? It's probably an issue of less-than-ideal compatibility between firmware and blobs.

I'll eventually make it a requirement to have the latest firmware, once I update most blobs to N.

AlvaroBrey avatar Aug 03 '17 10:08 AlvaroBrey

Right. Modem M8996FAAAANAZM-1.70664.3.76387.1 from the latest version of zui 2.5.412, modem 9-00009-M8996FAAAANAZM-1.53476.1 from zui 1.9.044.

IvvanVG avatar Aug 03 '17 11:08 IvvanVG

The fault occurs only in H+ but not in LTE.

Thanks

Luis-Gomez avatar Aug 09 '17 19:08 Luis-Gomez

The problem in the new build is not solved =(

IvvanVG avatar Aug 14 '17 16:08 IvvanVG

In the last review, the problem still exists.

If you want, some log me and I will attach it

Darkiu avatar Aug 21 '17 12:08 Darkiu

The problem in the last build is not solved...

IvvanVG avatar Sep 06 '17 01:09 IvvanVG

Well, that means it isn't a problem with blobs-modem compatibility. For now I can only advise you to use an older modem, as this is a very time-consuming thing to investigate.

AlvaroBrey avatar Sep 06 '17 11:09 AlvaroBrey

Thanks! I checked error for zui 2.5.412 (335, 104) and the problem is the same. So this is not a bug of your firmware. I think, modems or RIL from android N have an error in the networks h+. the modem is now installed 9-00026-M8996AAAANAZM-1.63821.1 (from zui 2.3.042, android M) - there are no problems, I think you can close the issue =]

IvvanVG avatar Sep 07 '17 15:09 IvvanVG

until today I have problem with the network h + and with wifi .... I think I will go back with the android M, does anyone have a suggestion?

fernandoiepe avatar Oct 03 '17 19:10 fernandoiepe

@fernandoiepe As we say earlier in this issue thread, if you experience these bugs you need to flash an older baseband. No need for downgrading the whole ROM.

AlvaroBrey avatar Oct 04 '17 08:10 AlvaroBrey

@ontherunvaro How do you do this?

fernandoiepe avatar Oct 04 '17 14:10 fernandoiepe