Related
Make sure you’ve backed up all of your IMPORTANT DATA before flashing stock ROM.
I am not responsible for bricked devices and dead SD cards. YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you.
1) Download RAW firmware here:
ZS570KL:
ZS570KL Pro:
2) Download ASUS Flash Tool here:
3) Install ASUS Flash Tool
4) Now, power off your device and enter Fastboot mode by pressing Power Button + Volume Up button
5) Open ASUS Flash Tool and select your device
6) Select the RAW firmware you've downloaded
7) Click on the Serial Number of your device.
8) Click Start and wait 5-10 minutes (ignore error 5 [FRP ERROR])
Congratulations, you have downgraded to Android Nougat
MOD EDIT: PAY-PER-CLICK LINKS REMOVED
Do you know if this method will relock the bootloader?
Dabiolos said:
Do you know if this method will relock the bootloader?
Click to expand...
Click to collapse
This method will not re-lock bootloader.
To relock, you need to find a CSC firmware (Factory RAW to be precise)
Thanks. I just hoped yours was a raw firmware...
is recommended make a wipe after or before this steps?
soaduddits said:
is recommended make a wipe after or before this steps?
Click to expand...
Click to collapse
Wipe after downgrading
Saktis_STi said:
Wipe after downgrading
Click to expand...
Click to collapse
The Flash tool is giving me the following error !
! C:\Users\ebanegas\Downloads\AFT_Asus_v1.0.0.70_csc.rar: Unsupported archive format. Please update WinRAR to a newer version.
! C:\Users\ebanegas\Downloads\AFT_Asus_v1.0.0.70_csc.rar: El archivo tiene un formato desconocido o está dañado
at last part it said that the file has an unknown format or is broken.
soaduddits said:
The Flash tool is giving me the following error !
! C:\Users\ebanegas\Downloads\AFT_Asus_v1.0.0.70_csc.rar: Unsupported archive format. Please update WinRAR to a newer version.
! C:\Users\ebanegas\Downloads\AFT_Asus_v1.0.0.70_csc.rar: El archivo tiene un formato desconocido o está dañado
at last part it said that the file has an unknown format or is broken.
Click to expand...
Click to collapse
Install the latest WinRAR
Make sure you've uninstalled old WinRAR
Saktis_STi said:
Install the latest WinRAR
Make sure you've uninstalled old WinRAR
Click to expand...
Click to collapse
I was able to install the last version of the Asus Tool Flash, that I downloaded from their page. I will use that!
Thanks!
soaduddits said:
I was able to install the last version of the Asus Tool Flash, that I downloaded from their page. I will use that!
Thanks!
Click to expand...
Click to collapse
Where did you get that?
Saktis_STi said:
Where did you get that?
Click to expand...
Click to collapse
From another forum, Team Android to be exact. The download link is the following one. www.devfiles.co/download/N42hOmzT/Asus_Zenfone_FlashTool_v2.0.1.zip
soaduddits said:
From another forum, Team Android to be exact. The download link is the following one. www.devfiles.co/download/N42hOmzT/Asus_Zenfone_FlashTool_v2.0.1.zip
Click to expand...
Click to collapse
This FlashTool will not work for ZS570KL
Saktis_STi said:
This FlashTool will not work for ZS570KL
Click to expand...
Click to collapse
I tried your link with other computer and got the same error message.
soaduddits said:
I tried your link with other computer and got the same error message.
Click to expand...
Click to collapse
Well, use older Flash Tool then
MOD EDIT: PAY-PER-CLICK LINKS REMOVED
Saktis_STi said:
Well, use older Flash Tool then
MOD EDIT: PAY-PER-CLICK LINKS REMOVED
Click to expand...
Click to collapse
that one works fine, I will do it tonight! Thanks for all your help.
I tryied to do this, after load the file it keeps on "Wait for device rebooting", then I reboot the device manually and I get other status "Read the Software version" while my phone its already turn on and working with the same android version, what should I do next? Enter on recovery mode and make a wipe data?
soaduddits said:
I tryied to do this, after load the file it keeps on "Wait for device rebooting", then I reboot the device manually and I get other status "Read the Software version" while my phone its already turn on and working with the same android version, what should I do next? Enter on recovery mode and make a wipe data?
Click to expand...
Click to collapse
Just close the ASUS Flash Tool & wipe data via recovery mode
Saktis_STi said:
Just close the ASUS Flash Tool & wipe data via recovery mode
Click to expand...
Click to collapse
I did that, but it didnt work, the wipe data was done, but once android load it was the version 8 instead 7.
Saktis_STi said:
This method will not re-lock bootloader.
To relock, you need to find a CSC firmware (Factory RAW to be precise)
Click to expand...
Click to collapse
Hi I have been looking for one of those and I found this rom
CSC_ZS570KL_5.10.1.184_WW_Lock_20171221.zip
on this indonesian website https://www.firmware27.com/2017/10/firmware-asus-zenfone-3-deluxe-z016d.html
Can you confirm that this is the rom we need to finally be able to relock the phone ?
Foi-racer said:
Hi I have been looking for one of those and I found this rom
CSC_ZS570KL_5.10.1.184_WW_Lock_20171221.zip
on this indonesian website https://www.firmware27.com/2017/10/firmware-asus-zenfone-3-deluxe-z016d.html
Can you confirm that this is the rom we need to finally be able to relock the phone ?
Click to expand...
Click to collapse
Yes and it is in testing. Will let you know when that firmware is working.
ONLY FOR A605FN,
ATTENTION,
this method is no longer the best option,
for root A6 + I recommend following the ashyx tutorial in the following post:
https://forum.xda-developers.com/galaxy-a6/development/recovery-twrp-3-2-3-1-galaxy-a6-a605-t3868598
1 - Backup your files.
2 - Flash this patchet boot.img with ODIN -
Download for A605FN (A605FNXXU1ARE2 PHE)
Download for A605FN (A605FNXXU2ARG2 PHE)
3 - When reboot your device automatic restore (dont worry,remember step 1).
4 - Install Magisk.apk and SuperUser working.
THANKS TO MAGISK FOR THE NEW ROOT METHOD WITHOUT RECOVERY
If I have helped you, invite me to a beer by clicking HERE.
Do it work with a605G. Thạnk
Safetynet
Does safetynet check work?
Anyone already try A605G
Andrianovaldi said:
Anyone already try A605G
Click to expand...
Click to collapse
I've tried and I get error Only offical binary is allowed to boot.
josemaesra said:
Click to expand...
Click to collapse
Can you make a file for A605G. This is the stock boot.img of A605G. Thank you very much
https://drive.google.com/file/d/1rKBan8G8ht73kSXPuciE4O_Qp6uqqXz_/view?usp=sharing
So I couldn't get safetynet check to work, is it just me or?
Codelyoko2409 said:
I've tried and I get error Only offical binary is allowed to boot.
Click to expand...
Click to collapse
U already activated oem unlock?
Andrianovaldi said:
U already activated oem unlock?
Click to expand...
Click to collapse
Yes. I flashed successfully but when I boot my phone. It show error
Codelyoko2409 said:
Can you make a file for A605G. This is the stock boot.img of A605G. Thank you very much
https://drive.google.com/file/d/1rKBan8G8ht73kSXPuciE4O_Qp6uqqXz_/view?usp=sharing
Click to expand...
Click to collapse
For A605G - Download
josemaesra said:
For A605G - Download
Click to expand...
Click to collapse
Thanks. But I can not test right now. I has to wait for a week
josemaesra said:
1 - Backup your files.
2 - Flash this patchet boot.img with ODIN - Download for A605FN.
Download for A605G
3 - When reboot your device automatic restore (dont worry,remember step 1).
4 - Install Magisk.apk and SuperUser working.
tried on A605FNXXU1ARE2
Click to expand...
Click to collapse
so, i just simply flash the boot.img, restart normally then instal supersu? need more detail steps and explanations
3 - When reboot your device automatic restore (dont worry,remember step 1). >> what;s mean remember step 1??
Codelyoko2409 said:
Yes. I flashed successfully but when I boot my phone. It show error
Click to expand...
Click to collapse
Pls try the new one sir
Andrianovaldi said:
Pls try the new one sir
Click to expand...
Click to collapse
Sorry. I hace to wait for 4 day to have oem unlock
an-_-dro said:
so, i just simply flash the boot.img, restart normally then instal supersu? need more detail steps and explanations
3 - When reboot your device automatic restore (dont worry,remember step 1). >> what;s mean remember step 1??
Click to expand...
Click to collapse
After flashing the boot image the device is restored and all personal files are deleted,
that's why it's important to remember step 1.:good:
[
josemaesra said:
After flashing the boot image the device is restored and all personal files are deleted,
that's why it's important to remember step 1.:good:
Click to expand...
Click to collapse
I already try boot.img for SM-A605G and get error not_dev bla bla, and i try boot.img for A605FN and sucessfully flashed and after reboot it say verification failed and must factory reset then i factory reset and succses untill homescreen, then i try acces twrp with volume up + down + power and show error u only official binary allowed to boot bla bla??
Andrianovaldi said:
[
I already try boot.img for SM-A605G and get error not_dev bla bla, and i try boot.img for A605FN and sucessfully flashed and after reboot it say verification failed and must factory reset then i factory reset and succses untill homescreen, then i try acces twrp with volume up + down + power and show error u only official binary allowed to boot bla bla
Click to expand...
Click to collapse
Currently there is no TWRP for A6 +,
this method is only to have superuser permissions.
After the factory reset only install Magisk.apk and you will have Superuser.:good:
josemaesra said:
Currently there is no TWRP for A6 +,
this method is only to have superuser permissions.
After the factory reset only install Magisk.apk and you will have Superuser.:good:
Click to expand...
Click to collapse
Ah i see, so after i factory reset and succesfully show homescreen i just install magisk.apk and done? Pfff now i must wait 7days or 14 days again too do it again?
josemaesra said:
Currently there is no TWRP for A6 +,
this method is only to have superuser permissions.
After the factory reset only install Magisk.apk and you will have Superuser.:good:
Click to expand...
Click to collapse
only magisk or superSU will work also? im not really like magisk for those complicated, superSU lot simple.
Andrianovaldi said:
Ah i see, so after i factory reset and succesfully show homescreen i just install magisk.apk and done? Pfff now i must wait 7days or 14 days again too do it again
Click to expand...
Click to collapse
bro, u're from indonesia right? your handset 6+ A605G/DS? the one which is working is img for A605FN?
which version f/w your currently on? i'm on ARG1.
Hello! I just updated to Android Pie and i've been wondering if there is any way to root the phone. Any help would be SUPER appriciated! Thanks!
Sure it is possible. With Magisk..
bb2k22 said:
Sure it is possible. With Magisk..
Click to expand...
Click to collapse
And how do you flash it?
borksek said:
And how do you flash it?
Click to expand...
Click to collapse
Take the boot.img out of the firmware package and transfer it to the phone. Install Magisk Manager, open it and click install.
Chose "patch boot image" option. When it's done, transfer "patched_boot.img" to pc and use fastboot to flash.
Code:
fastboot flash boot patched_boot.img
tys0n said:
Take the boot.img out of the firmware package and transfer it to the phone. Install Magisk Manager, open it and click install.
Chose "patch boot image" option. When it's done, transfer "patched_boot.img" to pc and use fastboot to flash.
Click to expand...
Click to collapse
Why not with twrp just flash zip?
borksek said:
Why not with twrp just flash zip?
Click to expand...
Click to collapse
I didn't wanna format data at the time to be able to mount it in TWRP, which is needed for flashing magisk since it writes to /data/adb.
tys0n said:
I didn't wanna format data at the time to be able to mount it in TWRP, which is needed for flashing magisk since it writes to /data/adb.
Click to expand...
Click to collapse
Why not just decrypt
borksek said:
Why not just decrypt
Click to expand...
Click to collapse
I tried a few zips for that when I was on O, but with no success.
There's more ways for decryption to try, like your fstab edit, but I would have to format data anyway.
Otherwise it won't boot after disabling forced encryption, because the data itself is still encrypted and won't be decrypted on boot.
tys0n said:
I tried a few zips for that when I was on O, but with no success.
There's more ways for decryption to try, like your fstab edit, but I would have to format data anyway.
Otherwise it won't boot after disabling forced encryption, because the data itself is still encrypted and won't be decrypted on boot.
Click to expand...
Click to collapse
Hello Tys0n, can you please help me with bootloop? I tried to install a magisk module and my phone bootloop. Please help me I just got my phone. Step by step i beg you.. I don't want to lose the phone..
Edit: nvm i fixed it by flashing stock rom
Bro
My Mi 8 Lite had stock, rooted (Magisk) MIUI Oreo and I dirty flashed MIUI Pie with TWRP 3.2.3. It booted up again with no problems and everything works but when I boot into recovery it now asks for a password to decrypt the data partition. Needless to say, the PIN for unlocking the screen is not accepted by TWRP. I'm hoping I won't need to wipe the data partition to fix this. Any ideas?
Thanks
<bump> anyone?
Sent from my MI 8 Lite using Tapatalk
If you are using the wzsx150 TWRP, notice that versions 1003/1203 are for Oreo only. You need to upgrade to versions 0121, 0212 or 0330 for Pie.
chan200606 said:
If you are using the wzsx150 TWRP, notice that versions 1003/1203 are for Oreo only. You need to upgrade to versions 0121, 0212 or 0330 for Pie.
Click to expand...
Click to collapse
Thanks a million, that fixed the problem. This information should be made available on the existing TWRP posts. I had a job finding the updated recoveries to download but came across a Google Drive folder that someone had posted https://drive.google.com/drive/folders/1780TJvn-ZHPBtgDdNjrN8i9YRlqPy38v - I went with the 0330 version which seems to be working fine.
dwl99 said:
Thanks a million, that fixed the problem. This information should be made available on the existing TWRP posts. I had a job finding the updated recoveries to download but came across a Google Drive folder that someone had posted https://drive.google.com/drive/folders/1780TJvn-ZHPBtgDdNjrN8i9YRlqPy38v - I went with the 0330 version which seems to be working fine.
Click to expand...
Click to collapse
I had the same problem (TWRP asking for password to decrypt data partition) and I have the 1003 version. So I am going to flash 0121, 0212 or 0330. Which do you recommend?
0330
Sent from my MI 8 Lite using Tapatalk
When I flashed 0330 the touchscreen is not working in twrp. How do I fix this?
tuytel said:
When I flashed 0330 the touchscreen is not working in twrp. How do I fix this?
Click to expand...
Click to collapse
This device has 3 different touchscreen panels (that I know of) and one of them is not fully supported. Which seems to be the one you have. To fix the problem the recovery needs some additions on source and then compiled. I suggest connecting to a pc and copying what you need off the internal storage and then use a recovery that your touchscreen works with and format the data partition using the option that asks you to type yes. This will remove encryption and allow you to access data no matter what recovery you use.
Maybe it's a stupid question bud wat is soue8and ?
tuytel said:
Maybe it's a stupid question bud wat is soue8and ?
Click to expand...
Click to collapse
My arthritis is bad today and it causes some issues with phone keyboard. It should say "source and". I went back and corrected it.
tuytel said:
When I flashed 0330 the touchscreen is not working in twrp. How do I fix this?
Click to expand...
Click to collapse
If you are not encrypted, flash OrangeFox recovery using the adb/fastboot method.
DarthJabba9 said:
If you are not encrypted, flash OrangeFox recovery using the adb/fastboot method.
Click to expand...
Click to collapse
Link to download OrangeFox?
I see: https://sourceforge.net/projects/orangefox/files/platina/OrangeFox-R9.0-2-platina.zip/download
MelvinGt5 said:
Link to download OrangeFox?
I see: https://sourceforge.net/projects/orangefox/files/platina/OrangeFox-R9.0-2-platina.zip/download
Click to expand...
Click to collapse
Yes, that is the correct download link.
I tried to flash this TWRP several times : TWRP-3.2.3-1003-XIAOMI8LITE-CN-wzsx150.img
but asks me for the password to decrypt the partition
later I read this trhead and tried to flash 0330 but now it returns the following error: Sending 'recovery' (63448 KB) FAILED (Write to device failed (Invalid argument))
What is the problem ?
Thank you
redblack68 said:
I tried to flash this TWRP several times : TWRP-3.2.3-1003-XIAOMI8LITE-CN-wzsx150.img
but asks me for the password to decrypt the partition
later I read this trhead and tried to flash 0330 but now it returns the following error: Sending 'recovery' (63448 KB) FAILED (Write to device failed (Invalid argument))
What is the problem ?
Thank you
Click to expand...
Click to collapse
Looks like you typed something wrong
cidxtc said:
Looks like you typed something wrong
Click to expand...
Click to collapse
it seems that adb / fastboot command no works
not even FASTBOOT ERASE CACHE
with FASTBOOT DEVICES the phone is seen
the phone runs normally
do I do a factory reset?
redblack68 said:
it seems that adb / fastboot command no works
not even FASTBOOT ERASE CACHE
with FASTBOOT DEVICES the phone is seen
the phone runs normally
do I do a factory reset?
Click to expand...
Click to collapse
Do you have root access in rom? If so you can flash rhe recovery image with an app called flashify. You can use the free version from playstore.
cidxtc said:
Do you have root access in rom? If so you can flash rhe recovery image with an app called flashify. You can use the free version from playstore.
Click to expand...
Click to collapse
No, no root. I would like to flash twrp to root with magisk
redblack68 said:
No, no root. I would like to flash twrp to root with magisk
Click to expand...
Click to collapse
Your bootloader was unlocked with mi unlocker?
cidxtc said:
Your bootloader was unlocked with mi unlocker?
Click to expand...
Click to collapse
Yes exactly
but now if i turn on my phone in fastboot, when i give an adb / fastboot command, the screen goes black and in the top left there is a very very small image " any key to shutdown". The same if i connect my phone in fastboot mode with mi unlocker
Unlocking Bootloader1. Make sure you have a sim and active mobile data. Then go to about phone tap build number 7-8 times. After that go to advanced settings > developer options > turn on OEM unlocking and then check if this device is secure and click add account and device.
2. Download Mi unlock tool from here. Extract it and paste it in C:/unlock. or else your device won't be recognized for unlocking.
3. Open Mi unlock tool and then enter the Mi account which was on your device. Put your device in fastboot mode by pressing vol- and power and then connect to PC. Press unlock and if it tells you to wait you have no other option but to wait. If your mi flash tool shows connect your device even after you have connected it. Follow this guide here.
4. After you have unlocked your bootloader reboot your phone.
Flashing TWRP and Rooting via magisk
1. Download this TWRP image here. Thanks to the original developer mauronofrio.
2. Download adb and fastboot tools here and install it.
3. Now put your phone in fastboot mode and connect it with your pc. Now where you have downloaded the TWRP file rename it to TWRP.img and open a CMD window there if you don't know how just google.
4. Type the following commands
1. fastboot devices
2. fastboot flash recovery TWRP.img
3. fastboot reboot recovery.
Click to expand...
Click to collapse
5. Your phone will boot into TWRP now. But TWRP will be overwritten by stock miui recovery to stop that you need to flash Magisk. Download this zip move it to internal storage then flash by tapping on install and swipe to flash. Reboot your device. Reboot to recovery again to check if TWRP is present.
Now your device is rooted
OR
Flash latest OrangeFox Recovery if you don't want magisk.
Flashing A rom
1. Download.
2. Flash.
3 Format Data.
Done
Feel free to ask any questions. And don't point a finger at me for messing your device.
My mi unlock tool says can't get info. I using Indian version miui 12
Thanks for the useful guide. I have a quick question, does this works with MIUI 12?
igeekyayush said:
My mi unlock tool says can't get info. I using Indian version miui 12
Click to expand...
Click to collapse
Sorry for late reply. Have you installed the drivers correctly? Try using another port in your pc or use this mi unlock tool version zip
Doombuggie85 said:
Thanks for the useful guide. I have a quick question, does this works with MIUI 12?
Click to expand...
Click to collapse
Yes, it does.
hello,
thanks for the reply sir. yes i've tired changing port, pc everything. today i've factory reset my phone and added mi account and now i'm getting 7 days wait time. let's see now
LoadOP2 said:
Sorry for late reply. Have you installed the drivers correctly? Try using another port in your pc or use this mi unlock tool version zip
Click to expand...
Click to collapse
igeekyayush said:
hello,
thanks for the reply sir. yes i've tired changing port, pc everything. today i've factory reset my phone and added mi account and now i'm getting 7 days wait time. let's see now
Click to expand...
Click to collapse
Okay keep the sim inserted and use the device for 7 days. And if it doesn't work try using older version of unlock tool.
Hi there!
Silly question: is it possible to install TWRP but keep the official ROM? (phone is unlocked)
_benedict_ said:
Hi there!
Silly question: is it possible to install TWRP but keep the official ROM? (phone is unlocked)
Click to expand...
Click to collapse
Flashing a custom rom is optional. You don't NEED to flash a rom to get TWRP...
---------- Post added at 06:48 PM ---------- Previous post was at 06:46 PM ----------
I've unlocked the bootloader using the unlock tool and waited for 7 days,
But i rooted the device using a different method where i patched a boot.img and flashed that to the device.
Will this method still work for me as I'm already rooted but just want TWRP so i can flash other ROMs.. The post says you have to flash magisk from the (temporary) TWRP for the TWRP to stay as the recovery..
Will the magisk on my phone and the magisk installed here collide?
I just want TWRP so i can switch to a custom rom, so any input is appreciated!!
_benedict_ said:
Hi there!
Silly question: is it possible to install TWRP but keep the official ROM? (phone is unlocked)
Click to expand...
Click to collapse
Skip the flashing a rom part and you will be good to go.
But i rooted the device using a different method where i patched a boot.img and flashed that to the device.
Will this method still work for me as I'm already rooted but just want TWRP so i can flash other ROMs.. The post says you have to flash magisk from the (temporary) TWRP for the TWRP to stay as the recovery..
Will the magisk on my phone and the magisk installed here collide?
I just want TWRP so i can switch to a custom rom, so any input is appreciated!!
Click to expand...
Click to collapse
You can flash twrp and then check if it persists. If not flash magisk again their is no thing as magisk colliding lol. Just make sure you flash a newer version. And if nothing works flash stock rom and then twrp.
If you have the stock boot IMG flash it and then intsall twrp and magisk.
smsry said:
Flashing a custom rom is optional. You don't NEED to flash a rom to get TWRP...
Click to expand...
Click to collapse
LoadOP2 said:
Skip the flashing a rom part and you will be good to go.
Click to expand...
Click to collapse
Haha, makes sense! Thank you for your answers
Nevermind.. i got it to work pretty easily..
I have twrp on this device and Pixel Experience ROM and it's working all fine..
But there's this one thing where when booting to recovery, it asks me to input a password for User(0) when i try to input anything it says password failed..
From reading the log, it says it's for decrypting data(8f I'm not mistaken)
Is this important? Do i need to decrypt it?
Currently the ROM works fine with no errors, so I'm not gonna bother, but would still like to know what this "decrypting" thing is..
smsry said:
Nevermind.. i got it to work pretty easily..
I have twrp on this device and Pixel Experience ROM and it's working all fine..
But there's this one thing where when booting to recovery, it asks me to input a password for User(0) when i try to input anything it says password failed..
From reading the log, it says it's for decrypting data(8f I'm not mistaken)
Is this important? Do i need to decrypt it?
Currently the ROM works fine with no errors, so I'm not gonna bother, but would still like to know what this "decrypting" thing is..
Click to expand...
Click to collapse
Yes, If you use a lock screen enter that password it will be decrypted. You will have to format data if you decide to flash any other rom anyway.
flashed twrp but not able to boot into recovery.
igeekyayush said:
flashed twrp but not able to boot into recovery.
Click to expand...
Click to collapse
There can be many reasons for that. Please tell me the error or what's actually happening. Then only I can be of help.
Sir ive used xiaomi flashtool v2 after that and it worked. Thanks sir. After that i updated to latest twrp from that chinese one.
LoadOP2 said:
There can be many reasons for that. Please tell me the error or what's actually happening. Then only I can be of help.
Click to expand...
Click to collapse
Joyeuse
Hello, Does it work for Joyeuse (European version)?
The name of TWRP says Curtana -Unified
rfguy said:
Hello, Does it work for Joyeuse (European version)?
The name of TWRP says Curtana -Unified
Click to expand...
Click to collapse
Yes Unified means all Snapdragon 720g Devices which include Joyeuse, Curtana, Gram, Excalibur.
Hey buddy, thank you for this quick step-by-step guide. I flash ROMs since 2012 and you know what? It helped me the same. Having all stuff needed for go from stock to custom concentrated in one place (plus some useful tip like the Magisk flash at the end) it's always useful and time-saving. Thank you
2 Micro-notes about fastboot btw:
- write 'fastboot (with lowered 'f'): it may confuse some newbie
- it's 'reboot' instead of 'boot'