Samsung A336 not start as usual

Jane1

Friend's Martview
Nov 23, 2018
171
15
Hi guys,
Samsung A336 does not start - a customer brought with a broken LCD but the phone was alive then.
I changed LCD but
Now to start the phone successfullyI must disconnect the battery connect charging and then connect the battery and the phone starts and I can use it normally. (The On/OFF button is not faulty).
If I use a laboratory power supply ( without connected battery) the phone starts
Who came accross a similar problem?
Thank you for reply
 
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