yashsingh1/xdaforums huggingface dataset:
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Thanks , I am downloading right now.

Your first version was stable , I only encountered some problem with the GravityBox(O) module for Xposed.

But this is not the ROM fault as Xposed is known to have issues

Cheers :good: , Will report back later :)
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] dosada:
I have a dual sim australian version with 1.64.710.11

can i install this? still stuck on 7.0
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Yes you can use a 2.xxxx ROM on a 1.64xxxx firmware , It worked with me when I first tried Oreo.

But later , I flashed an 1.64xxx RUU , upgraded to Oreo via OTAs to 2.19xxxx and then flashed this ROM again

My advice for you is to first upgrade to Oreo so you can have an upgraded firmware
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] lapaho:
Lên 8 rồi có back về 7 được bằng file RUU up qua recovery dc ko bác ơi

E lên 8 rồi có back đc về 7 qua recovery ko bác

--

Would it be able to downgrade to stock RUU via recovery after updating to 8.0 ?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Maybe you need S-OFF to downgrade firmware
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] dosada:
If you don't mind, could you please give me a link to which 1.64.xxx rom exactly to flash. Just to scared to mess something up.

And just to confirm, unlock bootloader, install twrp and then flash, right?

TIA
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
The link of the firmware is in the OP with the instructions

Just after flashing it , It will makes 2 OTAs :

The first OTA will upgrade to a Nougat and it's about 300 Mb

The Second OTA will upgrade your firmware to Oreo 2.19.xx and it's about 1.2 Gb

After that , Unlock(If your phone is locked) . You can check in download mode . I bought mine unlocked

Then Flash TWRP and ROM 8.0

Good luck :)
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] dosada:
Sorry if i am annoying, just want to make sure i get it right. I download Stock Nougat 1.64.400.10 rename it to 2PZFIMG and put it on a sd card. Boot into download mode and flash? Then wait for the two OTA updates?

TIA
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Yup :)

In this way you will upgrade your firmware to a stock Oreo firmware

But before check your CID. You can find on Playstore a lot of CID Checker

The One in the OP is HTC__060.

If it's the same , then Go for it
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] franko9o:
anywho not related to ... the amazing guy who made the rom.. for us.........

but. putting in a new sd card.. oreo doesn't let you format a drive unless it encrypts it too.. no choice

just letting ppl know format your new sd cards in an old phone .. kitkat.. assuming nougat wants to not let you format without encryption too. saves a lot of trouble

Oreo has a bug in NFC

.So if you use nfc tags like me to trigger stuff as you go to car etc.. good luck,.. gps wont trigger or hotspot.... even if we have root on this rom(usually GPS and hotspot need root only these two i think) . i was heart broken to find this out i use trigger app.

trigger app says i just dont have root.. but nfc tasks.. says a message.. there is a bug in oreo.. great. pfft.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Update TWRP to lastest version and you can fix can not format
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] franko9o:
Yea in previous post I said I went from 3.2.1 to 3.2.1-1 twrp stopped partitions lock. -1 lol last update I think forever. Fixed my old SD card.

The new card I'm thinking I got ripped off. Was 256 GB on auction eBay.. SanDisk fake advert i think.. i will give him ****e rating. Tried many times with new card . Copied some stuff slowwwww. errors.. some times copy sometimes not sometimes empty dir . Put in old card, copied in less than an hour blazing fast.

"For sale 256gb SanDisk non working card" ;) lol im sure its fine in a camera or something.

Since your got suggestions .. what's.got to.do with NFC ;) I mean is there a work around?

Cheers, Thanks
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] dosada:
Unfortunately not, i get back VODAP021, so no deal?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] GreatManDante:
My CID is HTC_059: Asian-Europe.

And I copy RUU 1.64.400.3 (after rename 2PZFIMG) to SDcard => poweroff => press buttton power + volume down => press volume up to flash => press power to confirm => error/fail... (My ultra unlocked)

I tried with RUU 1.64.400.3, Stock Nougat 1.64.400.10.

I need to rollback Android 7, help me.....
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Seem downgrade need S-OFF, or some tricks

Edit: Confirm can downgrade without S-OFF
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] yournametv:
Hi! Is it possible to install the updates/security-patches coming from HTC in the future when using this rom (Oreo 8.0)?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
If i have new system dump from new update, i will build new version. But for now i don't have RUU 8.0, so i cannot go back full stock ruu to build new rom. (can not flash ruu 7.0 while using firmware 8.0 because my device still S-ON)
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] äppler:
i tryed to read my cid in fastboot mode.

it shows CID: but no cid code itself

is it just possible with open bootloader?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can download some app in google play can show you CID
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] uchithisanka:
my device is on v1.64.400.10 but when i check it showing there is no any update? previously i was on ledroid ultra rom i already flash the ruu file from the first page and then i update it to the 1.64.400.10 but after that when i check it showing is no any update?

my cid HTC__060
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Yes. HTC stopped update for our U Ultra Dual Sim. But you can flash rom 8.0 at the first post.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] uchithisanka:
that mean install twrp and then flash the first page oreo rom?

or rename the zip file and flash through the download mode?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Just flash Oreo rom by using TWRP
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] äppler:
Why did they stopped the update? waiting for it in germany. dont want to root my Ultra
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] CoNsTaR:
What is that cute wallpaper with night houses?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Google Wallpaper ^_^
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] dosada:
I have used cid detect and it shows me VODAP021, can i still flash this rom without bricking my device?

TIA
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
This rom for u ultra dual sim, tested on CID 59 and 60. You can try. If it not work then go back your stock rom
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Hi [MENTION=6222398]minhnewpro[/MENTION]

Does this ROM have a Navbar ?

Usually I use the Navbar in GravityBox , But it is not working with this ROM

APM worked in GravityBox but not the Navbar
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can enable navibar with any rom

https://www.google.com.vn/amp/s/xda...o-enable-navigation-bar-android-t3461012/amp/
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Ok , Thanks :)

I am on it
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Hi , everything worked like a charm.

Would it be possible to Add APM so we won't need GravityBox

Is there any Zip to flash ?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] yournametv:
I flashed your Oreo rom and Its very good :D but I have a problem with TWRP since I flashed your rom. TWRP asked me the password for decrypting but I dont set any PIN/password/finger-protection. I tried to wipe all data/system and reinstalled again your Oreo rom but It still has the same problem. My TWRP version is 3.2.1.0. Do you know how to resolve it?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Upgrade your TWRP to lastest version
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] hellxprexx:
Mine is Android Nougat 7.0 and 1.64.410.1, can I upgrade with these??
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
This rom is for HTC U Ultra Dual Sim

CID 59, 60
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Deleted
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Hi ,

Just want to report a bug

There is a small problem with the Day Light Time zone saving with the ROM

Today in my country , we advanced the time to be GMT + 3

But Android is still taking GMT + 2.

I tried several time to fix it even restarting but the only way to fix this was to stop the automatic synchronization withe the Web server

Checked other phones and all are working well

Is there a way to fix this ?

Thanks
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] :
I'm not sure if this is a bug but on the Oreo version the sound seems too sharp at max volume and painful to the ear. I switched to a different rom and this issue wasn't there. Any solutions?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
HTC released new update 8.0 for U Ultra Dual Sim.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Updated new version 8.0
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Wow Thanks , Downloading right now
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Maybe you should downgrade to Nougat and update to oreo again.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
It worked perfectly :)

I am using it right now and no bugs so far.

But Why ? Is this because of the Radio ?

My Device is Unlocked S-ON I think I cannot downgrade
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Yes, you can downgrade. You need reupgrade because the size of old OTA file is 1,3GB, and the new one is 1.8GB

Downgrade: https://xdaforums.com/u-ultra/development/downgrade-oreo-to-nougat-t3764069
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Can I wait for an Official RUU ?

I checked the thread but I don't want to return to Nougat
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
It will take a long long time to find RUU
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ChavezD:
Is there any Chance to install it on a single-sim device?

Or to get a fix for single sim Support or something equivalent to Leedroid's Rom's dual-sim-fix?

I'm gonna try what happens when i Flash it on my device and Report back, if that anyhow helps?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
I don't know. Maybe Single sim will receive update soon.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] vinczetibor:
I dont have a SD card. Can I flash the OTA by Sideload? I am already on Oreo but I would like to reflash it because my phone is not stable after the OTA update and I have only 2 hours SOT. I have unlocked bootloader and the newest TWRP.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
I don't know. Maybe you should downgrade to nougat first. And then update to oreo.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ChavezD:
Actually I wasn't even able to install the ROM, so no problem here. Will have to wait for HTC to update single sim :eek:
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] razarahil:
How to install the OTA? Just move the ota file to sd card? I don't have any recovery installed, right now on stock nougat with S-Off.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Reflash ruu 7.0 and update OTA file. Someone told me HTC stopped update 8.0 again. So if you want try 8.0, you can try reflash RUU 7.0, rename ota file to OTA.zip and copy to SD Card, and then boot to stock recovery, choose apply update from sd card, find OTA.zip and flash it.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Naner8lo:
Hi, I'm on oreo and I want to downgrade to nougat, I have to unlock the bootloader and install RUU Nougat 1.64.400.3 at the first post?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Here you go: https://xdaforums.com/u-ultra/development/downgrade-oreo-to-nougat-t3764069
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Siggmaster:
Hi all,

I can just recommend the Stock Oreo on page 1.

With my from Abu Dabhi imported Dual SIM Variant the OTA Oreo was a Nightmare, bad Battery, couldn't make it barely over the day, approx. 1,5h SOT and heavy idle drain.

So I unlocked the bootloader, flashed the latest TWRP via ADB, flashed the Oreo from page 1 and I'm super satisfied now.

Battery lasts 2 days, no more idle drain and the best: VOLTE works too (o2 Germany).

It's definetely worth the effort. Finally I can sell my old, superstable Le Max 2.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Siggmaster:
Btw, Antutu:
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Siggmaster:
Any Chance getting the Oreo unrooted?

Cant use Blackberry Work...
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can try wipe data again.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Thanks for the 9/4 update :)

Any new the changes?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Just add back recovery-resource.dat in system\etc. Maybe no need to reflash rom if you don't have any issue.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] SejoGichia:
HTC U ultra stock oreo RUU

could you be having the unrooted stock oreo RUU? if so i would very much like you to provide a download link
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] c2781130:
Can I use magisk on this Oreo ROM?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
https://drive.google.com/open?id=1YLmCNXLRrqwCpk3PtZ8B3lcG-PhkTH5_ You can test if you want.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
I don't know
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
Still waiting for Australia to get Oreo sadly were always last

So I have to be on Oreo to flash an Oreo based rom
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can flash stock Oreo on Nougat firmware
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
Not if my country dont have oreo
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Yes you can . I did it , It will work without problem.

And you can also go back to 7.0 Nougat.

But once you flashed the 8.0 firmware , you won't be able to return back to Nougat
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
I need 8.0 to get leedroids rom or any custom 8.0 rom

The custom ones dont have bad issues
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] jeromelec:
Yes magisk Works fine, i used to since last week, no problem, but flash it on recovery to pass safety net, don't use the flash by magisk manager
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can downgrade to nougat from oreo.

I did it.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
i rang up htc service centre god know where but they dont know where australia will get the update they also said that every where else has it :( australia is the most expensive place in the world so far from every where and so late to get everything
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] udastgir:
Mean ? after Official Oreo Ota (8.0 firmware) twrp then any custom naught ROM ? work?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can see here: https://xdaforums.com/u-ultra/development/downgrade-oreo-to-nougat-t3764069

I used my stock oreo rooted on nougat firmware but i don't flash stock nougat rooted on Oreo firmware because i like Oreo.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
stucked

hi i have a problem for the model version i have a htc_oeuil but it's for htc_ocedugl what can i do (i tried to unpack the zip file but when i replace the model and recompress the file twrp says error invalid zip format

Thank you if someone help me
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
You can give me system dump so i can make a stock rooted rom for you.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] udastgir:
PLEASE do Something for single sim variant
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
https://xdaforums.com/showpost.php?p=76267852&postcount=7
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] udastgir:
I am on leedroids custom rom because I have demo unit
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
I can not do anything, if you have ruu for your phone, please send me link.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] udastgir:
https://mega.nz/#!vI4hmbLZ!dTaVXtLChCjZ2TG7LZO8TxY0HjTsMxr2Y25ZJaKErt4

Nougat Ruu zip
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
This ruu is for your phone? And is this the same version with your phone firmware?

And you can try Leedroid rom
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] udastgir:
yes same and currently i am on leedroid rom
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
informations for my phone

Manufacturer: HTC

Brand: htc

Model: HTC U ULTRA

Board: QC_REFERENCE_PHONE

Hardware: htc_oce

Boot loader: 1.0.0.0000

User: buildteam

Host: ABM122

Version: 8.0.0

Vesion Name: Oreo

API Level: 26

Fingerprint: htc/oceuhl_00401/htc_oceuhl:8.0.0/OPR1.170623.032/1031237.1:user/realase-keys

i tried to give you all the informations i have i also change my version with htc_version_tool for you're rom (my version is 2.21.401.1 as default) and i also tried to root my phone with supersu and no-opt-encrypt but not worked (twrp says all is good but when i restart my phone i don't have supersu) thank you for ur help :D
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
And you want to root your phone?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
So you want use stock rooted rom
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
yes

yes i want
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Did you flash this https://download.chainfire.eu/1220/SuperSU/
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
i will try

---------- Post added at 03:09 PM ---------- Previous post was at 02:31 PM ----------

now supersu says su occupied
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Try this https://www.youtube.com/watch?v=6jA8os4qHq4
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
BRICKED

i tried and supersu says root undected i tried by twrp and now my htc is bricked :/
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
How you manage that Snapdragon phones are near impossible to brick

Are you sure its not a soft brick
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
i don't know it's blocked to the htc "powered by android" logo :/
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
Brick means it wont turn on at all thats just a soft brick

Just power button and volume down till just the little htc comes up go to bootloader then recovery flash your rom again if using leedroid use magisk not super su
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
i tried magisk but he says not stock img
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
Not stock no but your phone will work till you can figure it out
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
i unbricked it by reflash supersu how can i root my htc oreo now please :c
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Nairolf784:
can u do a version for me please
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] panda968:
Sorry what do you mean im half awake at 1.55am
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
Give me RUU or System dump, i can make stock rooted for you.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Lucaro94:
I am very noob at these things.

Can you tell me what is the main advantages of this rom over the stock oreo?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
-It's pre-Rooted :)

-All the Apps the hog the system are removed

-Smaller in size

-Faster than stock because less apps

-better on battery :)

You can do whatever you want with it (Add Xposed module and more tweaks...)
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] sanju_barc:
Dear minhnewpro,

As per your post #109, We can downgrade to nougat from Oreo. I understand that with Noghat firmware(1.xx) we can switch to Oreo or again back to Noghat. But Is it really possible to revert to Nougat fom Oreo with 2.xx firmware. Please guide
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] QDT:
Yes, it is possible. I actually just did it. Everything is described in the thread: https://xdaforums.com/u-ultra/development/downgrade-oreo-to-nougat-t3764069
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] sanju_barc:
Currently I am on Android 8.0.0 with firmware 2.19.401.1 Can I switch to Nougat with 1.xx firmware? I am worried.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] QDT:
I you can read with understanding and follow simple guide then you may succeed. If you cannot use tools like adb and fastboot and where to get proper RUU file (which is the key!) - you gotta leave your ROM as it is.

I just did the downgrade from 2.19.400.1 to 1.64.400.10. Everything went smooth but took almost an hour.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] sanju_barc:
I have gone through the link you suggested. I have knowledge of adb, root etc. As you confirmed that you have successfully switched to Noghat, I have one question - your device is S - On or Off. Coz, as per my knowledge, going back to old firmware S-Off is must.

Also, pls advise which option is better for performance & battery backup - flash rooted deodexed Oreo OR switch back to Nougat. Thanks
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] QDT:
Choice between N or O is ones own preference. No advice here.

My device is S-On. Only the bootloader is unlocked.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] frazefast:
Has anyone had issues using Google Assistant with the 8.0?
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
I think you can't. But you can try to flash if you want. =]]

If you have any issue like no signal, can not booting up,... just go back to your previous rom.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] qwadn:
Hi !

I have recently updated my HTC to android oreo ( official update ) and since then my phone has not been picking up any signal.

I'd like to downgrade it to android nougat, anyone teach me how step by step:-?

Would really appreciate it!!

---------- Post added at 12:42 PM ---------- Previous post was at 12:38 PM ----------

Hi

I have recently updated my HTC to android oreo ( official update ) and since then my phone has not been picking up any signal

I would like to downgrade to android nougat but Im not 100% sure how

Can anyone briefly explain it?

Thanks !!
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
Follow this steps :

https://xdaforums.com/u-ultra/development/downgrade-oreo-to-nougat-t3764069

Strange tho since you are on the official HTC update

Before trying to downgrade , try a factory reset
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] Siggmaster:
Any update? As some guys have the march security patch already.
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] ForceField:
+1

It will be really nice with some tweaks too ;)

I am mostly using your ROM because it is the best in term of battery consumption
[HTC U Ultra ROMs, Kernels, Recoveries, & Other Dev] minhnewpro:
I don't recive any new OTA. Just wait. Or if you guy have System dump or OTA file, please give it to me.