A23 TZX-723Q4 allwinner A23 and PCB TZX-723Q4 firmware help

Hi every 1
I have chines tablet (Epad A704J)
PCB : A23
main board :TZX_723Q4
I used many firmware ,but not succeed, for remember i used this firmware (TZX-723Q3-4.4-SY121D-S)for same other tablet had succes ,but for this tablet wont accept firmware any one have a solation for my problem please ?
best regards


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