Guys,
I just bought a Note from a guy who only mentionned that after boot, he could enter his gmail and samsung credentials and then was having a error message : "shell cannot read videos"... I thought this was simple to fix by re-installing JB. The price was attracting because of this issue that the guy could not fix himself.
OK, I knew this was risky : when I received the phone (yes I did not see it before I bought it !), I did not get this error message at all..., but I noticed that the phone was rebooting every 10 minutes when fully charged, and every 2 minutes when batttery reached about 20%.
When fully charged, I could use Odin and install 4.1.2 (XEU-N7000XXLT9-20130611091825.tar.md5) with secured kernel (almost stock) fron philz (PhilZ-cwm6-XXLT9-ORA-5.08.5-signed.zip). This did not fix anything.
The phone is 3 to 4 years old, so is the battery as far as I know. So I first guessed the reboots would probably be due to a weak battery that could not stand the required voltage when the phone was attempting to draw too big a current.
But before I get a new battery, I tried to monitor its voltage during the reboot. I installed to (thin) wires on + and - terminals of the battery connector and connected them to a multimeter while the battery was in place. Unfortunately I could not observe any voltage drop when the phone rebooted. Which tells me it might not be as simple as an old battery problem...
I tried 2 other experiments. The first one was to drive on my 2 wires the same voltage level as the battery from an external supply (I had to keep the battery in place otherwise the phone would not boot, even with a 19kohms resistance between gound and thermistor terminal in the middle). I could observe up to about 300mA drawn at boot time, then around 150mA when ON. I was hoping that the phone would not reboot by itself anymore, as my external supply was not current limited (it could drive up to 1.5A). But it did...
The second experiment was the same, but with an additional (big !) 200nF capacitor between supply and ground to filter out any voltage glitch that could not be captured by the multimeter. The phone lasted longer, but rebooted after about 10 to 15 minutes :(
What do you guys think ? Do you still think a new battery would fix this (I doubt) ? Do you think I should try another android version ? Get back to Gingerbread maybe (I would rather avoid ICS as I read that ICS could brick my phone due to unsecure kernel...).
I noticed I could accelerate the reboot when trying to listen an mp3. At that time the phone starts lagging as hell, and I get a "bad format" error (the mp3 was the Ringtone.mp3 installed with the OS...). After a minute or so of such lagging , it rebooted. But if I just let the phone ON without starting any app, it still reboots after a while.
Any help, thought, comments appreciated !
Thanks and regards
I just bought a Note from a guy who only mentionned that after boot, he could enter his gmail and samsung credentials and then was having a error message : "shell cannot read videos"... I thought this was simple to fix by re-installing JB. The price was attracting because of this issue that the guy could not fix himself.
OK, I knew this was risky : when I received the phone (yes I did not see it before I bought it !), I did not get this error message at all..., but I noticed that the phone was rebooting every 10 minutes when fully charged, and every 2 minutes when batttery reached about 20%.
When fully charged, I could use Odin and install 4.1.2 (XEU-N7000XXLT9-20130611091825.tar.md5) with secured kernel (almost stock) fron philz (PhilZ-cwm6-XXLT9-ORA-5.08.5-signed.zip). This did not fix anything.
The phone is 3 to 4 years old, so is the battery as far as I know. So I first guessed the reboots would probably be due to a weak battery that could not stand the required voltage when the phone was attempting to draw too big a current.
But before I get a new battery, I tried to monitor its voltage during the reboot. I installed to (thin) wires on + and - terminals of the battery connector and connected them to a multimeter while the battery was in place. Unfortunately I could not observe any voltage drop when the phone rebooted. Which tells me it might not be as simple as an old battery problem...
I tried 2 other experiments. The first one was to drive on my 2 wires the same voltage level as the battery from an external supply (I had to keep the battery in place otherwise the phone would not boot, even with a 19kohms resistance between gound and thermistor terminal in the middle). I could observe up to about 300mA drawn at boot time, then around 150mA when ON. I was hoping that the phone would not reboot by itself anymore, as my external supply was not current limited (it could drive up to 1.5A). But it did...
The second experiment was the same, but with an additional (big !) 200nF capacitor between supply and ground to filter out any voltage glitch that could not be captured by the multimeter. The phone lasted longer, but rebooted after about 10 to 15 minutes :(
What do you guys think ? Do you still think a new battery would fix this (I doubt) ? Do you think I should try another android version ? Get back to Gingerbread maybe (I would rather avoid ICS as I read that ICS could brick my phone due to unsecure kernel...).
I noticed I could accelerate the reboot when trying to listen an mp3. At that time the phone starts lagging as hell, and I get a "bad format" error (the mp3 was the Ringtone.mp3 installed with the OS...). After a minute or so of such lagging , it rebooted. But if I just let the phone ON without starting any app, it still reboots after a while.
Any help, thought, comments appreciated !
Thanks and regards
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