I have the same problem ,posted it weeks ago on the site,no responses.This happened just after my portable wi fi went on the blink.What was going on before Your problem occured?
By the way,the only way I got mine to shut off was disassemble it and manuallky disconnect the battery.
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== Update ==
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That sounds exactly like what was going on before mine went out.You May have just answered my Question.
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Your fix reminds me of what happens to battery and other teminals when they get coroded.It's possible a tiny bit of corrosion or foreign material was between terminals.Thank You for responding
I have the same problem ,posted it weeks ago on the site,no responses.This happened just after my portable wi fi went on the blink.What was going on before Your problem occured?
By the way,the only way I got mine to shut off was disassemble it and manuallky disconnect the battery.