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Invalid Kernal length, and it won't charge

G

guest user

Lurker
So, my Samsung galaxy tab a 10.1 decided to not work anymore. Since the tablet's battery died it needs to be constantly plugged in, but it won't actually charge or hold the charge if you understand. Whenever it is plugged the, the screen tries to show the plugged in and charging screen with the percentage, but it starts flashing for some reason. And other times whenever I try to turn it on there are red letters saying "invalid kernel length." After that it will try to boot again but fail and then just not turn on the screen at all. Does anyone have any idea on how I can fix it? Or should I just get a new tablet?
 
guest user said:
So, my Samsung galaxy tab a 10.1 decided to not work anymore. Since the tablet's battery died it needs to be constantly plugged in, but it won't actually charge or hold the charge if you understand. Whenever it is plugged the, the screen tries to show the plugged in and charging screen with the percentage, but it starts flashing for some reason. And other times whenever I try to turn it on there are red letters saying "invalid kernel length." After that it will try to boot again but fail and then just not turn on the screen at all. Does anyone have any idea on how I can fix it? Or should I just get a new tablet?
Click to expand...

Sounds like the device is rooted. Try a older or newer version of Teamwin recovery.
 
Just in case anybody else has the same problem, I've written up the solution to this issue.
  1. Download your phone firmware from a website like updato.com, sammobile.com, samfrew.com, sfirmware.com, samfw.com.
    Or use a tool like Frija or Samfirm to get the latest, which tend to be a bit faster.

  2. Plug in the USB to a computer while holding both VolUP and VolDown.
    The tablet's screen will turn on in download (Odin) mode.

  3. Download and run the latest version of Odin.
  4. Extract the firmware you downloaded and place the BL, AP, CP, and CSC files in their respective slots.
    You can ignore the file that says HOME_CSC if there is one.

  5. When the processes finish, your phone will reboot into Android.
Cheers,
Clam​
 
Last edited by a moderator:
Many, though none I can post without this forum's detection filter preventing my post from going through. I've tried to edit my post three times and each time it stops me.

Odin: https://odindownload.club/download/205/Odin3-v3.14.4.zip
Odin: https://technastic.com/odin-download-samsung-latest-all-versions/
Heimdall: https://glassechidna.com.au/heimdall/
Heimdall: https://gitlab.com/BenjaminDobell/Heimdall

And yet it doesn't mind that I post them here.https://gitlab.com/BenjaminDobell/Heimdall
 
Clamtacos said:
Many, though none I can post without this forum's detection filter preventing my post from going through. I've tried to edit my post three times and each time it stops me.

Odin: https://odindownload.club/download/205/Odin3-v3.14.4.zip
Odin: https://technastic.com/odin-download-samsung-latest-all-versions/
Heimdall: https://glassechidna.com.au/heimdall/
Heimdall: https://gitlab.com/BenjaminDobell/Heimdall

And yet it doesn't mind that I post them here.
Click to expand...
Sometimes the filters are harsh for new members posting links. :( :mad: You should be all set, but if you continue to have problems, just reply to the PM I sent you. :)
 
guest user said:
Whenever it is plugged the, the screen tries to show the plugged in and charging screen with the percentage, but it starts flashing for some reason. And other times whenever I try to turn it on there are red letters saying "invalid kernel length." After that it will try to boot again but fail and then just not turn on the screen at all.
Click to expand...

I have the exact same issue on my Galaxy Tab A. The other day I saw a caution/warning ⚠️ sign when I was charging the tablet while turned off. And since then it randomly restarts when being used, and can only be turned back on when plugged in. Battery percentage also fluctuates.

I thought the battery is dead, but I wanna try the solution provided above. I really hope it gets fixed.

Edit: Nvm, flashing stock firmware didn't work. Now it only stays on when plugged in :(
 
Last edited:
Clamtacos said:
Just in case anybody else has the same problem, I've written up the solution to this issue.
  1. Download your phone firmware from a website like updato.com, sammobile.com, samfrew.com, sfirmware.com, samfw.com.
    Or use a tool like Frija or Samfirm to get the latest, which tend to be a bit faster.

  2. Plug in the USB to a computer while holding both VolUP and VolDown.
    The tablet's screen will turn on in download (Odin) mode.

  3. Download and run the latest version of Odin.
  4. Extract the firmware you downloaded and place the BL, AP, CP, and CSC files in their respective slots.
    You can ignore the file that says HOME_CSC if there is one.

  5. When the processes finish, your phone will reboot into Android.
Cheers,
Clam​
Click to expand...
Thank you so much ,bro! It works！！！！！！！
 
Clamtacos said:
Just in case anybody else has the same problem, I've written up the solution to this issue.
  1. Download your phone firmware from a website like updato.com, sammobile.com, samfrew.com, sfirmware.com, samfw.com.
    Or use a tool like Frija or Samfirm to get the latest, which tend to be a bit faster.

  2. Plug in the USB to a computer while holding both VolUP and VolDown.
    The tablet's screen will turn on in download (Odin) mode.

  3. Download and run the latest version of Odin.
  4. Extract the firmware you downloaded and place the BL, AP, CP, and CSC files in their respective slots.
    You can ignore the file that says HOME_CSC if there is one.

  5. When the processes finish, your phone will reboot into Android.
Cheers,
Clam​
Click to expand...
This all looks really useful... however is there a way to resolve when the tablet has no power and won't charge at all??
 
I had this issue three times on the same device and fixed it very simply. Just remove back cover and connect bench power supply directly to battery , bypasding charging circuit. 3.5-4V is enough, 10 minutes or so will bring battery level back to recognizeable by charging circuit and then you can use normal USB charger.
Don't allow device to discharge fully if you don't want to repeat procedure again.
Don't know what it has with "wrong id KERNELL LENGTH" error which sounds to me very misleading...
 
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