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ARM/N900/Recover From Drained Battery

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<strong>Warning: This page is still under review</strong>
<strong>Warning: This page is still under review</strong>
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=== You suspect you have drained your battery ===
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== You suspect you have drained your battery ==
You see one or more of the following symptoms:
You see one or more of the following symptoms:
* Device may be completely unresponsive with no signs of life
* Device may be completely unresponsive with no signs of life
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* MeeGo or Maemo fail to boot up. The point of failure is random or attempts keep getting shorter
* MeeGo or Maemo fail to boot up. The point of failure is random or attempts keep getting shorter
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* Battery voltage may be 3.0-3.3V (you may know how to measure this)
* Battery voltage may be 3.0-3.3V (you may know how to measure this)
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Your best choise for recovering is to boot Maemo 5 and let it handle recharging.
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Your best choice for recovering the battery is to boot Maemo 5 and let it handle recharging.
How to do that depends on how MeeGo was installed into your device:
How to do that depends on how MeeGo was installed into your device:
=== In case you have a working dualboot configuration between Maemo 5 PR1.3 and MeeGo ===
=== In case you have a working dualboot configuration between Maemo 5 PR1.3 and MeeGo ===
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* Power down, remove MeeGo SD card, connect Nokia wall charger and wait.
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# Power down
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# Remove MeeGo SD card
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* It will show amber status led until it boots to Maemo which will handle charging.
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# Connect Nokia wall charger
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# Wait for 30min to give device time to recharge
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# The device will show amber status led until it boots to Maemo which will handle the rest of the charging.
=== In case you have flashed the MeeGo kernel into N900, but have a working Maemo rootfs ===
=== In case you have flashed the MeeGo kernel into N900, but have a working Maemo rootfs ===
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* You have to flash Maemo 5 kernel back to the device in order to boot Maemo and recharge.
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You have to flash Maemo 5 kernel back to the device in order to boot Maemo and recharge.
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See this page: http://wiki.maemo.org/Updating_the_tablet_firmware
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See this page: http://wiki.maemo.org/Updating_the_tablet_firmware and search for ''Flashing only the kernel from a FIASCO image''
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and search for "Flashing only the kernel from a FIASCO image"
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* If flashing seems successful continue as follows:
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# <u>If flashing of Maemo kernel is successful</u>
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## Power down
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* Power down, remove MeeGo SD card, connect Nokia wall charger and wait.
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## Remove MeeGo SD card
-
 
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## Connect Nokia wall charger
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* It will show amber status led until it boots to Maemo which will handle charging.
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## Wait for 30min to give device time to recharge
-
 
+
## The device will show amber status led until it boots to Maemo which will handle the rest of the charging.
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* If flashing Maemo kernel fails, or above doesn't help, keep reading.
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# <u>If flashing of Maemo kernel fails</u>, or above doesn't help, keep reading.
=== In case you are unable to flash Maemo kernel or do not have a working Maemo rootfs to boot into ===
=== In case you are unable to flash Maemo kernel or do not have a working Maemo rootfs to boot into ===
* You can always recharge the battery in another N900. Go to a phone store/friend/enemy near you and ask nicely if they can charge your battery for a while.
* You can always recharge the battery in another N900. Go to a phone store/friend/enemy near you and ask nicely if they can charge your battery for a while.
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* Recharge the battery using a phone compatible with the battery (refer to instruction manual). As always - you are doing this on your own risk.
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* Recharge the battery using a phone compatible with the battery (refer to instruction manual) As always - you are doing this on your own risk.
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* Other creative ways to charge battery exists, ask help from MeeGo community.
* Other creative ways to charge battery exists, ask help from MeeGo community.

Revision as of 07:32, 5 November 2010

Warning: This page is still under review

Contents

You suspect you have drained your battery

You see one or more of the following symptoms:

  • Device may be completely unresponsive with no signs of life
  • MeeGo or Maemo fail to boot up. The point of failure is random or attempts keep getting shorter
  • Battery voltage may be 3.0-3.3V (you may know how to measure this)

Your best choice for recovering the battery is to boot Maemo 5 and let it handle recharging. How to do that depends on how MeeGo was installed into your device:

In case you have a working dualboot configuration between Maemo 5 PR1.3 and MeeGo

  1. Power down
  2. Remove MeeGo SD card
  3. Connect Nokia wall charger
  4. Wait for 30min to give device time to recharge
  5. The device will show amber status led until it boots to Maemo which will handle the rest of the charging.

In case you have flashed the MeeGo kernel into N900, but have a working Maemo rootfs

You have to flash Maemo 5 kernel back to the device in order to boot Maemo and recharge.

See this page: http://wiki.maemo.org/Updating_the_tablet_firmware and search for Flashing only the kernel from a FIASCO image

  1. If flashing of Maemo kernel is successful
    1. Power down
    2. Remove MeeGo SD card
    3. Connect Nokia wall charger
    4. Wait for 30min to give device time to recharge
    5. The device will show amber status led until it boots to Maemo which will handle the rest of the charging.
  2. If flashing of Maemo kernel fails, or above doesn't help, keep reading.

In case you are unable to flash Maemo kernel or do not have a working Maemo rootfs to boot into

  • You can always recharge the battery in another N900. Go to a phone store/friend/enemy near you and ask nicely if they can charge your battery for a while.
  • Recharge the battery using a phone compatible with the battery (refer to instruction manual). As always - you are doing this on your own risk.
  • Other creative ways to charge battery exists, ask help from MeeGo community.
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