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Since a few weeks, my phone is behaving strangely, it works OK in airplane mode but when the network is on i get several of the following symptoms:

  • the phone becomes partially unresponsive, i experience freezes, lags
  • apps like twitter often crash and are very slow
  • the phone reboots by itself
  • the battery usage becomes very high (emptying a fully charged phone within the hour)
  • the phone overheats

I have also noticed that when networking is on the battery charging indicator is stopping and starting alternatively (like 1-2 secs work, 1-2 secs frozen). This does not happen when airplane mode is on (indicator progress is fluid).

How do i troubleshoot this problem? Are there some diag tools i could use or logs i could check?

What i have tried so far:

  • install all app updates (but i have trouble doing that as google play works erraticaly)
  • reset cache & davik partitions from the cm menu
  • clear the cache of twitter & google play
  • delete google play history

My combo:

  • Galaxy Note 1 - N7000
  • CyanogenMod 11-20160815-NIGHTLY-n7000
  • Android 4.4.4
  • Band version: N7000XXLT3

EDIT: This is not linked to a ROM update (last ROM update was 9 months ago and the trouble started about 1 month ago).

marked as duplicate by bmdixon, ale, Dan Hulme May 7 '17 at 8:22

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  • Well you are using a Note 1, which is beyond old in technology years. And you are also using a custom ROM. These 2 things combined can cause problems. What does using the factory ROM do? – user202027 May 5 '17 at 13:44
  • @bmdixon please check edit – wotter May 5 '17 at 16:48
  • @sixandseven8ths thanks but your suggestion sounds a little bit too much like "ah you have a problem with windows, did you try to reinstall it?" – wotter May 5 '17 at 16:52
  • It's more like "you replaced Windows with a homebrew version that even the author thinks doesn't work, and now you want us to debug it for you?" – Dan Hulme May 7 '17 at 8:22