HTC ChaCha Power adapter problem topic

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My HTC ChaCha giving me this massage every 2 to 5 seconds :

"The power adapter you connected is not compatible
To avoid damaging your phone please disconnect it now
Be sure that you only use manufacturer-supplied power adapters with you phone"

And its not charging the battery ... I did not change any thing .. I am using the same original charger
I just want to know how to stop this massage from appearing ..
I thought it was the ROM so I did the flash the rom again in this order :

-1- fastboot flash boot boot.img
-2- fastboot flash recovery recovery.img
-3- fastboot flash radio radio.img
-4- fastboot flash system system.img
-5- factory rest
-6- reboot

so guys PLEASE help me to find the solution
My warranty wont cover it because I unlocked the boot loader before for trying to flash ICS and JB but no success


:crying::crying::crying::crying::crying::crying::c rying::crying::crying::crying::crying::crying::cry ing::crying::crying::crying::crying::crying::cryin g::crying::crying::crying::crying::crying::crying: :crying:

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