How can I upgrade bootloader from LP on ZE550? - ZenFone 2 Q&A, Help & Troubleshooting

I never got the 'System Update' and I can't find the stock Marshmallow ROM anywhere. How can I upgrade the bootloader without the stock image? P.S: I'm using crDroid (CM12) now, unlocked bootloader

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How do I install the Rom lollipop

I've work Root to my phone M8
I installed formal Recovery, but have not succeeded in installing the update
Device status s-on
I think the bot Lauder is open because I tried to re-lock but did not Restart device
What should be done to install lollipop on the device​
Bootloader being LOCKED or RELOCKED is not a requirement for OTA.
You need stock ROM, stock recovery, and that is all. Root is okay, and unlocked bootloader is okay (but LOCKED or RELOCKED will also work).
You sure LP has rolled out for your version of the M8? What version is it, and what region are you located?
redpoint73 said:
Bootloader being LOCKED or RELOCKED is not a requirement for OTA.
You need stock ROM, stock recovery, and that is all. Root is okay, and unlocked bootloader is okay (but LOCKED or RELOCKED will also work).
You sure LP has rolled out for your version of the M8? What version is it, and what region are you located?
Click to expand...
Click to collapse
Thank you for your response
my Android viesion of mobile 4.4.4 .Is this you mean?
If true Can you provide me with stock ROM V 5.0.1 and stock recovery
thank you and I waiting you
and my region phone UAE Of the company HTC When I spoke to him But I'm not from UAE
khaledoghlo said:
my Android viesion of mobile 4.4.4 .Is this you mean?
If true Can you provide me with stock ROM V 5.0.1 and stock recovery
Click to expand...
Click to collapse
No, you do not want to do that (install a 5.0 stock ROM with a current 4.4.4 setup). Reason being, your firmware will not be updated to Lollipop firmware.
What you want to do, is go to the stock backup thread, find the stock 4.4.4 ROM and stock recovery for your CID. Restore stock ROM and flash stock recovery, then OTA to 5.0. OTA will update your firmware. This is assuming your CID has rolled out Lollipop.
http://forum.xda-developers.com/showthread.php?t=2701376

Lollipop to Marshmallow

So, I'm still in lollipop blobs and would like to update to marshmallow. Can I just flash the latest mm stock rom to any stock recovery? Or do I need to flash the first mm stock rom release before flashing the latest stock?
Edit: Does upgrading to mm makes the bl locked?
Hello,
You could grab the latest full stock MM to the root of SD card and let FOTAService to detect it and choose the package. It'll automatically reboot to recovery to flash updates.
I successfully updated to stock MM .134 from .196 LL without relocking bootloader. Some may have their bootloader re-locked.
Regards.
Sent from my ASUS_Z00A using XDA Labs

Can i install update manually even if i have unlocked bootloader.

Hi i am a zplay user i have unlocked bootloader and i am in 6.0.1 and i have stock recovery. Can i download 7.0 and install manually please help me
if you have stock rom and unlocked BL, you should recieve official OTA updated. But yes, you can flash 7.0 or 7.1 manually.

Will I be able to upgrade to Pie if my bootloader is unlocked?

So I'm still on stock, but I can't install OTA updates, which is to be expected since I have an unlocked bootloader, and TWRP. But I'm wondering if that will make an upgrade to Pie impossible without waiting for a custom ROM to come out? Or will I have to relock the bootloader to get it?
yes, if u not rooted neither using custom recovery

How to upgrade custome ROM to OREO?

I have bootloader unlocked, S-ON, run custom Nougat right now but I want to upgrade to some of the custom Oreo or Pie ROMS.
How can I do that???
Flashing through TWRP (latest version) just gives me a boot-loop.
slyb2 said:
I have bootloader unlocked, S-ON, run custom Nougat right now but I want to upgrade to some of the custom Oreo or Pie ROMS.
How can I do that???
Flashing through TWRP (latest version) just gives me a boot-loop.
Click to expand...
Click to collapse
upgrade your firmware to Oreo first.
How?
To recap, how to flash Oreo firmware if I am on custom Nougat ROM and have S-ON?

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