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I'm trying to debug a ROM problem, that cause Android animation boot run forever, occuring after the first reboot.

Trying to read the log with logcat ,executing from shell adb logcat -d before powering on the phone, but adb remains in < waiting for device > state

Before rebooting Android, I test adb logcat and it was working fine.

Anyone can help? How to read boot logs?

MadPapo
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  • Logcat is part of the OS, hence it can not run before the OS boot process has at least started up to the point where logcat is loaded. – Robert Jan 08 '21 at 08:51
  • I found some log files in /cache partition, but they are completely empty – MadPapo Jan 08 '21 at 09:31
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    You can persist the logcat: https://android.stackexchange.com/a/216659/218526 and https://android.stackexchange.com/a/216857/218526. Or persist the kernel log: https://android.stackexchange.com/a/213460/218526 – Irfan Latif Jan 09 '21 at 04:14

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