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Smartq K7 battery level stuck at 100%

Discussion in 'Android Devices' started by lexprie, Jan 20, 2013.

  1. lexprie

    lexprie Lurker
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    Hello. I am a new user and I hope i am writing into the correct forum.
    I just got my new SmartQ K7 chinese tablet (Cortex A9-based).

    The problem is that it always shows battery level as 100%. When the battery gets empty, it just switches off without warning. When I connect charger then, it shows 100% again, but keeps on charging until the battery is fully charged (still always showing 100% during this).
    The battery gets warm when charging and then gets colder later, so I beleive that the charging process is controlled correctly by the circuit, and the problem is only in reporting the charge level to the OS.
    I tried deleting batterystats.bin, flashing the newest firmware, wiping data and cache partitions and battery stats via CWM, disassembling the unit and unsoldering the battery. Nothing helps.

    I searched but found no common solution for my device or any similar one. The same problem is common for Ainol Novo tablets, and there is a well-known solution to writie certain bytes into certain files in /sys/devices/i2c-2. Unfortunately my device doesn't have this branch on the filesystem.

    Does anyone have any suggestions what to try next?

    I beleive that replacing the battery cannot help me, since the battery controlling circuit is on the mainboard, not inside the battery. Am I right?
     

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