I accidentally installed an outdated bootloader to my device and I cannot seem to access the download mode I also tried to access the recovery and I tried letting the device run out of battery by holding down the power button for a long time. And then connecting the phone to the computer while holding both the volume and power buttons. It only shows the circle with a lightning bolt in it. It also shows a cyan box with red text reading " rev. check fail. Device: 4 binary: 2 (otb)
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Does this answer your question? How to access the download mode of a device with a outdated bootloader?– alecxsCommented Sep 14, 2021 at 19:28
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@alecxs No it does not.– UrmomCommented Sep 15, 2021 at 14:16
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1 Answer
Since download mode isn't accessible, taking it to the service center is the only way to unbrick it.
