If it doesn't boot, it's not a ROM topic, but an installation issue.
What did you do, and which TWRP you are using?
Have you allowed TWRP to install its System App? If yes, go back & disallow, as this will definitely block LOS from booting
This will be the same issue with other system apps which come without proper permission xml file. TWRP definitely needs to fix this.
What did you do, and which TWRP you are using?
Have you allowed TWRP to install its System App? If yes, go back & disallow, as this will definitely block LOS from booting
This will be the same issue with other system apps which come without proper permission xml file. TWRP definitely needs to fix this.
Here a detailed Instruction:
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1. In your ROM, go to Settings -> About device. Tap 7 times on Build number to enable Developer options.
2. Now go to Settings -> Developer options. (above About device)
You need to enable OEM unlock, otherwise you might end up with boot problems or be unable to flash later on.
3. Extract Odin to your computer.
4. Install Samsung Mobile Phone Drivers for Odin to find your device.
5. Download a .tar image of TWRP for herolte.
6. Reboot your device into Download mode. To do this, select reboot from the power menu and hold the [Volume Down] + [Home] buttons while your device reboots.
Once you reach the Download mode warning screen, press [Volume Up] to continue.
7. [Optional] Install latest Bootloader / Modem firmware:
Open Odin and place the Bootloader in the [AP] and Modem in the [CP] slot.
Disable Auto-Reboot Option, then press [Start].
8. Open Odin and place that TWRP tar file in the [AP] slot.
Disable Auto-Reboot Option, then press [Start].
9. Hold [Volume Down] + [Home] + [Power] to get out of Download mode and immediately swap [Volume Down] to [Volume Up] (continuing to hold [Home] + [Power]) when the screen blanks.
If you don't see then TWRP boot splash try again from step 6.
10. At this point, you will reach the screen asking you if you want to allow system modifications.
By swiping right, you will trigger dm-verity, and if you don't follow the next step you will be unable to boot!
11. After allowing modifications, go into Wipe and choose Format Data option
(no need to format differently and then format back again)
12. REBOOT back into TWRP recovery again using the option in the reboot menu
13. Download the latest ROM for your device.
Without exiting TWRP, transfer the ROM zip to your device over MTP* and flash it using [Install] in TWRP.
14. [Optional] Download the latest GAPPS for your device.
Without exiting TWRP, transfer the GAPPS zip to your device over MTP* and flash it using [Install] in TWRP.
Important: Flash Gapps and Mods right after Rom Installation, no reboot in between!
15. Go to [Reboot] -> [System].
12. Wait 2-5 minutes for your device to finish setting itself up.
========================================================
1. In your ROM, go to Settings -> About device. Tap 7 times on Build number to enable Developer options.
2. Now go to Settings -> Developer options. (above About device)
You need to enable OEM unlock, otherwise you might end up with boot problems or be unable to flash later on.
3. Extract Odin to your computer.
4. Install Samsung Mobile Phone Drivers for Odin to find your device.
5. Download a .tar image of TWRP for herolte.
6. Reboot your device into Download mode. To do this, select reboot from the power menu and hold the [Volume Down] + [Home] buttons while your device reboots.
Once you reach the Download mode warning screen, press [Volume Up] to continue.
7. [Optional] Install latest Bootloader / Modem firmware:
Open Odin and place the Bootloader in the [AP] and Modem in the [CP] slot.
Disable Auto-Reboot Option, then press [Start].
8. Open Odin and place that TWRP tar file in the [AP] slot.
Disable Auto-Reboot Option, then press [Start].
9. Hold [Volume Down] + [Home] + [Power] to get out of Download mode and immediately swap [Volume Down] to [Volume Up] (continuing to hold [Home] + [Power]) when the screen blanks.
If you don't see then TWRP boot splash try again from step 6.
10. At this point, you will reach the screen asking you if you want to allow system modifications.
By swiping right, you will trigger dm-verity, and if you don't follow the next step you will be unable to boot!
11. After allowing modifications, go into Wipe and choose Format Data option
(no need to format differently and then format back again)
12. REBOOT back into TWRP recovery again using the option in the reboot menu
13. Download the latest ROM for your device.
Without exiting TWRP, transfer the ROM zip to your device over MTP* and flash it using [Install] in TWRP.
14. [Optional] Download the latest GAPPS for your device.
Without exiting TWRP, transfer the GAPPS zip to your device over MTP* and flash it using [Install] in TWRP.
Important: Flash Gapps and Mods right after Rom Installation, no reboot in between!
15. Go to [Reboot] -> [System].
12. Wait 2-5 minutes for your device to finish setting itself up.