Oneplus 9 Pro [ LE2125 ] Downgrade Android 14 to 11 | Step-by-Step Guide

Downgrading the OnePlus 9 Pro (LE2125) from Android 14 to Android 11 involves a few critical steps. Please note that downgrading can be risky, and you may lose your data. Ensure you back up all important data before proceeding. Here’s a step-by-step guide:
Warning
Backup Your Data: Before starting, back up your phone’s data. Downgrading will erase everything on your device.
Battery Level: Ensure your phone has at least 50% battery to prevent any interruption during the process.
Requirements
OnePlus 9 Pro (LE2125)
A computer (Windows/Mac/Linux)
ADB and Fastboot tools installed on your computer
OxygenOS 11 ROM for OnePlus 9 Pro
USB cable
Steps to Downgrade
1. Unlock the Bootloader
Enable Developer Options:
Go to Settings
About phone.
Tap on Build number seven times until you see a message saying "You are now a developer."
Enable OEM Unlocking and USB Debugging:
Go to Settings
System
Developer options.
Enable OEM unlocking.
Enable USB debugging.
Unlock the Bootloader:
Connect your phone to the computer via USB.
Open a command prompt (Windows) or terminal (Mac/Linux) on your computer.
Enter the following commands:
shell
Copy code
adb devices
adb reboot bootloader
fastboot oem unlock
Use the volume keys on your phone to navigate to Unlock the Bootloader, then press the power button to confirm.
2. Download OxygenOS 11 ROM
Download the appropriate OxygenOS 11 ROM for your OnePlus 9 Pro from the official OnePlus website or a trusted source.
3. Flash OxygenOS 11
Transfer ROM to Phone:
Connect your phone to the computer and transfer the downloaded ROM file to your phone’s internal storage.
Enter Recovery Mode:
Turn off your phone.
Press and hold the Volume Down and Power buttons simultaneously until the OnePlus logo appears, then release both buttons.
Install ROM:
In Recovery Mode, select Install from internal storage or Install from local.
Navigate to the ROM file you transferred and select it to begin the installation.
Factory Reset:
After the installation is complete, perform a factory reset to ensure there are no conflicts or leftover data.
Select Wipe data and cache in the recovery menu, then select Factory reset.
Reboot:
Once the factory reset is complete, reboot your phone.
Your OnePlus 9 Pro should now be running OxygenOS 11 (Android 11). If you encounter any issues, you may need to perform additional troubleshooting or seek help from OnePlus support forums.
Post-Downgrade Steps
Restore Data: Restore your data from the backup you made earlier.
Re-enable Developer Options and USB Debugging if needed.
Notes
Warranty: Unlocking the bootloader and flashing a ROM might void your warranty. Proceed with caution.
Risk of Bricking: Downgrading carries a risk of bricking your device. Ensure you follow each step carefully.
If you have any specific questions or run into issues during the process, feel free to ask!

[@_mr_villain_]

Good knowledge bro thanks , you got a new subscriber and please make a saparate video for OnePlus 9R

[@MuhammadAdnankpr]

Which version do you want to downgrade I am creating a video for you as soon as possible

[@shahriarnafij_lyrics8311]

​@@MuhammadAdnankpr Android 11 india plz

[@knowmore1112]

Samsung M32 4g downgrade tool bata dijiye odin se nahi ho raha

[@MuhammadAdnankpr]

M32 4g mein mtk cpu laga hoa hay agar app ne frp remove karna ha tu app test point laga ke koi bhi mtk tool use kar sacte hein

[@knowmore1112]

@@MuhammadAdnankpr android 13 hai mujhe android 11 karna hai odin me binary error aa raha hai

[@muthukumarmuthusamy8110]

Bro my drvice is getting disconnected, its showing on qualcomm 9008 com10 , but in 10 seconds it will getting disconnected

[@MuhammadAdnankpr]

Its battery is low , cable not good or drivers not properly updated These are the cause Try one by one

[@AbdulSaboor-z5t]

Bhai me ne file download kr ke jese he usb cable attached ki mobile off ho gia ab on nahi ho raha

[@MuhammadAdnankpr]

Bahi volumes key or power ko daba ke rakho or usb cable lagi honi chaiye

[@AbdulSaboor-z5t]

@@MuhammadAdnankpr ab start ho gia he lekan fast mood me chala gia he wahan pr kon si key use karni he

[@FarhadJutt-k8j]

Dear mera oneplus 9 LE2115 hai. North America. Lekin wo show ni ho rha ab knsa version kru?

[@MuhammadAdnankpr]

drive.google.com/file/d/1bUrcLeOCbZNHBFLmPqM-oTNWCd9xh07Q/view download this first check your android version and purpose kia ha software karne ka

[@FarhadJutt-k8j]

@MuhammadAdnankpr green lines issue. Someone told me that there's an 80% chance of remove green lines if you downgrade your phone on android 11

[@FarhadJutt-k8j]

@@MuhammadAdnankpr is it possible? What's your experience?

[@MuhammadAdnankpr]

@@FarhadJutt-k8j not solved with flashing bro you need to change your display

[@FarhadJutt-k8j]

@@MuhammadAdnankpr ok got it. Thanks

[@Alkhaliqmotors]

Aoa, Bro kiya downgrade karne se green line issue fix ho jainga ??

[@MuhammadAdnankpr]

Nahi bahi ye Glich aya tha update karne ke bad is ne Led Panel Damage kar dia Bohat logoin ko ye masla aya nahi solve hoa only LED Panel Replace Solution ha Pakistan mein is ki koi franchise nahi ha india mein logo ne franchises pe ja je panels change karwae hein

[@iffi7833]

Mera phone mai sim crose arhi hai kya karo??

[@MuhammadAdnankpr]

Check karo PTA Approved hay ??

[@sutjiptokartasaputra]

Why downgraded?? What the purpose??

[@MuhammadAdnankpr]

Bro sometimes software buggy ,hang problems and glitches, and security repair issue in mobile after update Thats why we need to downgrade the mobile to fix these kinds of issues Hope you are clear now

[@AbdulHadi-k5z]

T mobile ki profile download krke nhi horhhaah hai

[@MuhammadAdnankpr]

Bahi global wali file try kar lo ya eu wali

[@rumman338]

Sir kia es process sy downgrade krny sy patch to ni khtm ho jy ga mery pass oneplus 9r ha wo android 14 pr ha

[@MuhammadAdnankpr]

agar bahi app ne patch permanent kia ha tu nai khatum ho ga

[@rumman338]

kindly reply and mera phone gobal ha but firmware indian avaiable ha sirf to kia ma kr skta hu india may downgrade

[@MuhammadAdnankpr]

@@rumman338 jo procedure bataya hay bahi wese karein agar app ka firmware match nahi ho ga tu bhi set dead nahi ho ga guarantee. agar file match nahi hoti tu app koi or frimware write karna baad mein jo website mein ne batai hay waha pe frimware mil jay ge app ko waha se download kar lena agar lakin pehle app try karo inshaAllah ho jay ga app ka masla hal ho jay ga

[@rumman338]

@@MuhammadAdnankpr udhar 9r ky lia sirf india wala firmware ha to wahi kr lu ma phone ho jy ga downgrade ya rehny du

[@MuhammadAdnankpr]

@@rumman338 done karo bahi ok ho jay ga agar match na bhi hoa tu dead nahi ho ga follow my procedure jo tool dia hoa ha wohi use karna ha or koi nahi zaberdasti nahi karni ha set ke sath agar match nahi ho ga error de ga or kuch nhi

[@shivkumarbiradar939]

Bahi andriod 11 par 5g chalta hai

[@MuhammadAdnankpr]

Gi bahi 100% chale ga

[@shivkumarbiradar939]

Android 11 rollback file send karo please 🥺

[@AbyJaa]

Salam bro Mere pas OnePlus 9 hai Or yeh T mobile wla hai isme me konsa wla kron??

[@MuhammadAdnankpr]

Bahi global or indian try kar ke dekh lo nai to tmobile wala tu lag jay ga

[@AbyJaa]

@@MuhammadAdnankpr or Kya yeh patch ho skta hai

[@AbdulHadi-k5z]

Bhai jan t mobile wale version me krne se koi issue to nhi hoga update nhi ayi wapis ya nhi

[@MuhammadAdnankpr]

Jo tarika bataya ha wese hi karein

[@AbdulHadi-k5z]

Ok

[@AbyJaa]

Bro apki shop kaha hai?

[@MuhammadAdnankpr]

Gi bahi meri mobile shop ha

[@AbyJaa]

@@MuhammadAdnankpr address

[@muthukumarmuthusamy8110]

Bro y did u flashed EU? Why not indian rom?

[@MuhammadAdnankpr]

You can't update after you flash with Indian rom that's why i use Eu rom

[@muthukumarmuthusamy8110]

@MuhammadAdnankpr bro my mobile is LE2121 indian variant, if i flash indian rom, can i able to get OTA updates in future?

[@muthukumarmuthusamy8110]

Bro reply

[@Hamza.Ali.H]

is file se flash ke baad system updates ayn gi ya nhi kue ke kuch phones could not update ka error dete hain

[@MuhammadAdnankpr]

Ji euro region wali file se downgrade karein update bhi ho ga

[@Hamza.Ali.H]

@@MuhammadAdnankpr chalain check krtay hain

[@MuhammadAdnankpr]

@@Hamza.Ali.H gi 100% tested

[@vinayakchoudhary1088]

Mere OnePlus 9R me green line issue hai agar downgrade krunga to shi hi jayega kya?

[@MuhammadAdnankpr]

@@vinayakchoudhary1088 nahi bhi downgrade se bahi app ka masla hal nai ho ga ye software mein glich aya tha update ai thi jis ne bhi update kia us ke bad ye masla ana shoro hoa Panel change only solution

[@vinayakchoudhary1088]

@@MuhammadAdnankpr bhai mai try kr raha tha ab mera mobile on nhi ho raha hai kuch help ho skti hai ?

[@MuhammadAdnankpr]

@@vinayakchoudhary1088 subha rabta kar lena on.kar lein ge koi masla.nai

[@abdulrehmanusman2862]

Bhai Patch urh gya hai kindly woh bhi repair krna seekha de plzz

[@MuhammadAdnankpr]

Ji bahi educational purpose ke zaroor ek video banao ga wese ye illegal ha mein ye nai karta

[@AhmedMujtaba-l9l]

Down grade krnay se hota kya hai, mujhe apna oneplus 9pro kud patch krna ? Kaise ho ga

[@MuhammadAdnankpr]

@@AhmedMujtaba-l9l Bro sometimes software buggy ,hang problems and glitches, and security repair issue in mobile after update Thats why we need to downgrade the mobile to fix these kinds of issues Hope you are clear now

[@AhmedMujtaba-l9l]

@@MuhammadAdnankpr bhai ap se ik or cheeze bhi pouch lyta hm, kindly bata dain oneplus 9 pro lynay ja raha hm 64000 ka mil raha hai without patch, lyna chaheye. Or kud patch krsakta hai banda

[@AhmedMujtaba-l9l]

Bhai waiting for your, suggestion.

[@MuhammadAdnankpr]

@@AhmedMujtaba-l9l app ko tool chaiye ho ga jis ke zariye app patch kar sacte hein lakin its illegal

[@Raoghulam]

Bhia le2113 ki file kaha sa mily gee

[@MuhammadAdnankpr]

Bahi video dekhein shoro mein sara tariqa bataya ha

[@Raoghulam]

Bhai eu ki available hi nhi hai India or global available hai 9 ki​@@MuhammadAdnankpr

[@MuhammadAdnankpr]

@@Raoghulam Eu Ki firmware ka kia karna ha app ne jo avail hein us se kaam nai ban raha kia ??

[@MuhammadAdnankpr]

@@Raoghulam androidfilehost.com/?fid=4279422670115715722 ye ek file mili ha lakin pata nahi mein ne check ki nahi hoi so apne risk pe flash kar ke dekh lo

[@remediesbyaqeela2290]

8 pro bhi isi tarah ho jaye ga?

[@MuhammadAdnankpr]

Gi bahi ho jay ga

[@HowHighareu]

Bhai le2125 k liy konse karni hai file EU k global?

[@MuhammadAdnankpr]

Eu use karrin

[@HowHighareu]

@@MuhammadAdnankpr downgrade se pta patch to ni khtm ho jay ga?

[@MuhammadAdnankpr]

@Girlsedits999 depend permanent ha ya temperary

[@iamfarhankdm]

Bahi le2123 ko android 14 pr hai isko patch kasy kr skty hai

[@vishalsoftwere]

Oneplus 9 bhi ho jaega kya

[@MuhammadAdnankpr]

@@vishalsoftwere gi bahi ho jay ga

[@HeeraGSM]

Adnan. bhai mare pass Jo 9 pr0 ha andriod14 ha regulatory United States America kon se file lage go EU YA GULBAL ?

[@HeeraGSM]

BAHI. AS KA BOOTUNLOK KARNA HA PHLE?

[@MuhammadAdnankpr]

Bahi dono firmware match ho jay gee jo marzi laga lo

[@MuhammadAdnankpr]

No need bootloader unlock App official firmware use kar rahe ho or oneplus downgrade karne ki sahoolat deta ha Hain agar ap custom rom ya root karna chate hein to app ko bootloader unlock karna pare ga

[@HeeraGSM]

@@MuhammadAdnankpr done thnxs

[@HeeraGSM]

😍😍 sub OK ho gay MSASHALLAH ALLAH app ko our izat dean

[@vertixpk4364]

Iss se patch khatam ho jayega?

[@MuhammadAdnankpr]

Nahi patch khatum nai ho ga

[@princehabib2843]

Mery model kon say ya to bat do le2123

[@princehabib2843]

Or Kon say file Lage ge

[@MuhammadAdnankpr]

@@princehabib2843 OnePlus 9 Pro 5G LE2123 Dual SIM 12GB+256GB EU/UK

[@MuhammadAdnankpr]

@@princehabib2843 Global or EU file lag jay gi

[@fantasticdailyfun-fm9ui]

Mera mobile 😂pata Nahin kidar chala jata ha valume botton press karne per

[@MuhammadAdnankpr]

EDL Mode Mein jata hay bahi

[@fantasticdailyfun-fm9ui]

Mera mobile war geya ❤on nahin ho raha 😅😢

[@MuhammadAdnankpr]

kia condition ha is waqt koi or file try karein

[@SRG__PROFIT_126]

Brother please mera krwa do , mera OnePlus 9R hai

[@MuhammadAdnankpr]

Do the same bro

[@MuhammadAdnankpr]

Current android version kon sa install ha

[@SRG__PROFIT_126]

@@MuhammadAdnankpr 14 hai

[@SRG__PROFIT_126]

​@@MuhammadAdnankprBhai maine try Kiya lekin COM me kuch nhi dikha rha

[@AbdulHadi-k5z]

Mujhe 14 se 13 pe krna ha

[@MuhammadAdnankpr]

First downgrade to 11 then update to 13 with the same procedure

[@AbdulHadi-k5z]

Update to ayi gi naw

[@MuhammadAdnankpr]

@@AbdulHadi-k5z ji bahi upate ay gi

[@Better_minee]

THIS IS NOT THE COMPLETE GUIDE ⚠⚠⚠! you need to download drivers for your mobile device in your computer first and then use msm tool because if u dont this can even brick your smartphone... there are other videos with complete guide and description you can watch because this is not complete guide...

[@MuhammadAdnankpr]

This is the complete guide How to Flash Oneplus But if you need to download drivers first it might be the other video for " How to Install Driver for Oneplus " If anyone installs fresh windows os or flash oneplus mobile software first time Everyone knows they need drivers to connect with PC But if you install All drivers already this guide is for those I think you are clear bro If you want that video on how to download and install oneplus mobile drivers i can make it for you bro its not a big issue

[@hamzaone-1]

بھائی جان میرے پاس ون پلس نائن یو ایس اے ماڈل ہے انڈرائڈ 14 ہے میں نے اس کو اینڈرائڈ 11 پر شفٹ کرنا ہے کیا اس کا جو پیچ ہے وہ ختم ہو جائے گا یا نہیں مطلب اس پر جو ائی ایم ائی ہے وہی ائی ایم ائی رہے گا

[@hamzaone-1]

LE2117 Model Ha

[@MuhammadAdnankpr]

Imei khatum nai ho ga

[@MuhammadAdnankpr]

@@hamzaone-1 no issue app kar lo downgrade

[@hamzaone-1]

@@MuhammadAdnankpr thanks 🙏

[@themaskboy4001]

Mere 90 select ha deta 60 ha tu me downgrade kardo abhi 14 ha

[@MuhammadAdnankpr]

Bahi kehna kia chate ho ye 90 or 60 kia hay

[@themaskboy4001]

@@MuhammadAdnankpr pubg me fps

[@MuhammadAdnankpr]

@@themaskboy4001 ese bolo na yar dekh lo agar performance android 14 pe theek nai de raha to downgrade kar lo may be ye help kar jay

[@AbdulHadi-k5z]

Le2117 model ha

[@MuhammadAdnankpr]

Gi bahi ho jay ga

[@AbdulHadi-k5z]

T mobile wali profile kro??

[@MuhammadAdnankpr]

@@AbdulHadi-k5z downgraded to android 11 first with global or tmobile jo match ho jay then update to android 13

[@AbdulHadi-k5z]

Dono profile try kro?

[@remediesbyaqeela2290]

Meray say nhi ho raha Maine try kia hy

[@MuhammadAdnankpr]

@@remediesbyaqeela2290 abhi 5 minute pehle ek set downgrade kia hay oneplus 9

[@MuhammadAdnankpr]

@@remediesbyaqeela2290 same procedure yar simple ha jaha problem a rai hay app batao

[@Hamza.Ali.H]

or oneplus ki ota files kahan se milti hain

[@MuhammadAdnankpr]

Chk karrin video mein website open ki ha

[@Hamza.Ali.H]

@@MuhammadAdnankpr ye flash file hai ota nhi

[@mehaseeburrehman]

Why Downgrade is needed?

[@MuhammadAdnankpr]

Downgrade is needed in some conditions 1- if you want to root your mobile and the current android version is not supported 2- if security damage and current version is not supported for repair security 3- some kind of glitch or hang problem in mobile

[@mehaseeburrehman]

@MuhammadAdnankpr thanks you so much for information ❤️ JazakAllah