Acer A1-840 boot screen - Android Q&A, Help & Troubleshooting

Ok my Acer a1 840 was working good it was rooted. i rooted it to use go launcher.
Anyways i put it on charge last night . took it off charge when i got up opened my gmail app an it shut off then it was stuck at the boot logo screen. So i did a reset and it was still stuck on the bootlogo. I tryed to look for the stock fw to flash back on it from the sdcard. but it would give me the Signature Verification Failed error.
so i did it useing the FASTBOOT TETHERED RECOVERY LAUNCHER an if worked but still wont pass the boot screen.
my system is acer_av0k1_a1-840_rv0zrc03_ww_gen1
but the only stock fw i can find was
SDs_Acer_A1-840_AV0K1.RV00RC00_AV0K1.RV0ERC02_WW_GEN1
SDs_Acer_A1-840_AV0K1.RV00RC00_AV0K1.RV0LRC01_GC_GEN1
SDs_Acer_AV0K1_A1-840_RV0XRC02_WW_GEN1.zip
anyone have the stock fw for my system or am i doing somthing wrong

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[Q] help please

i was flashing my phone back to stock rom gb and it would not reboot got stuck at the samsung logo .. so i finally got it to go into download mode but it is now stuck there .. can someone give me some kind of help .. i have flashed this thing many times but never had this problem..i flashed the rom it rebooted but stuck at the samsung screen at boot up for 20 minutes with nothing happening so i took the battery out and every time i turn it on it sticks there .. cant go back into recovery mode only thing i can get it to do is go into download mode but have no clue what that is even for ..
meckino2002 said:
i was flashing my phone back to stock rom gb and it would not reboot got stuck at the samsung logo .. so i finally got it to go into download mode but it is now stuck there .. can someone give me some kind of help .. i have flashed this thing many times but never had this problem..i flashed the rom it rebooted but stuck at the samsung screen at boot up for 20 minutes with nothing happening so i took the battery out and every time i turn it on it sticks there .. cant go back into recovery mode only thing i can get it to do is go into download mode but have no clue what that is even for ..
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