Custom rom (CM11) development bootloop at startup - Android Software Development

We are working on CM11 for the Samsung Galaxy Tab 3 T110, CM11 compiles and we can flash CM11.
But after booting the phone, CM11 won't boot, the Cyanogenmod logo won't appear.
What could be the problem? Incomplete device tree?
We don't see any weird errors in the kernel logs.

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Boot loop after flashing CM9 until Semaphore kernel flashed

Can someone explain why this happens:
1. I flash CM9 nightly or latest release
2. Phone goes into boot loop
3. I power the phone up into the yellow boot loader screen and flash the Semaphore ICS kernel with Heimdall
4. The phone boots and runs OK
Why does the phone go into a boot loop until I flash the Semaphore kernel? How can I stop this behaviour?
Sounds like a big error... don't sound good. You flashing cm9 or cm10? nightly builds are really good. i recommend getting a cm10 nightly build and try that. otherwise, try and find a way of flashing roms and kernels a different way...

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sm-g7102

Hi guys. I just want to ask how to fix bootloop. I think its bootloop. I flash stock ROM from Samsung. Then I tried to flash custom ROM( already done this numerous times in the same phone(cm13, RR, aokp) before I flash stock rom) but when the flashing completed and the phone reboots, its stuck in boot animation. Right now I'm trying to flash this aokp 7.1 for sm-g7102 but stuck in boot animation like other custom ROM. I've already installed aokp 7.1 , cm13, and RR on this phone before I flash custom ROM. Pls help me flash at least aokp. I'm stuck at 4.4.2 KitKat. Help me guys.
kiritokazuto332 said:
Hi guys. I just want to ask how to fix bootloop. I think its bootloop. I flash stock ROM from Samsung. Then I tried to flash custom ROM( already done this numerous times in the same phone(cm13, RR, aokp) before I flash stock rom) but when the flashing completed and the phone reboots, its stuck in boot animation. Right now I'm trying to flash this aokp 7.1 for sm-g7102 but stuck in boot animation like other custom ROM. I've already installed aokp 7.1 , cm13, and RR on this phone before I flash custom ROM. Pls help me flash at least aokp. I'm stuck at 4.4.2 KitKat. Help me guys.
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Do clean install, wipe all except internal & external sdcard. Then flash the rom

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