how to downgrade smartisan os 6.x - Smartisan Nut R1 Questions & Answers

I recently got an upgrade to smartisan 4.x to 6.x .i want to downgrade. Is it possible? I liked when in 4.x the toggle buttons color can be changed which ia not possible in 6.x

your phone is not r1? r1 don't have smartisan 4.x!

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Flashable Firmware Collection

vivo NEX A (China Model)
- Android 10.0 Q Developer Preview (Funtouch OS 9.0)
PD1806_A_A1907.11.02_user_ard10.0-update-full_1563175141.zip
PD1806_A_A1906.21.20_user_ard10.0-update-full_1561363721.zip
PD1806_A_A1905.08.20_user_ard10.0-update-full_1557366617.zip
PD1806_A_A1905.07.11_user_ard10.0-update-full_1557209856.zip
- Android 9.0 Pie (Funtouch OS 9.0)
PD1806_A_7.6.3-update-full_0619032155.zip
PD1806_A_7.6.0-update-full_0528033331.zip
- Android 9.0 Pie (Funtouch OS 4.5)
PD1806_A_6.10.15-wipe-update-full_1557058084.zip (Downgrading from Q)
PD1806_A_6.10.15-update-full_0412014058.zip
PD1806_A_6.10.6-update-full_0318235436.zip
PD1806_A_6.10.1-update-full_0127051445.zip
PD1806MA-patch_6.10.1_for_2.22.3_0127051445.zip
- Android 8.1 Oreo (Funtouch OS 4.0)
PD1806_A_2.13.8-update-full_1531209477
vivo NEX S (China Model)
- Android 10.0 Q Developer Preview (Funtouch OS 9.0)
PD1805_A_A1907.11.00_user_ard10-update-full_1563174486.zip
PD1805_A_A1906.21.20_user_ard10.0-update-full_1561363006.zip
PD1805_A_A1905.08.20_user_ard10.0-update-full_1557367793.zip
PD1805_A_A1905.02.19_user_ard10.0-update-full_1557056924.zip
- Android 9.0 Pie (Funtouch OS 9.0)
PD1805_A_7.8.2-update-full_0705184037.zip
PD1805_A_7.8.0-update-full_0619153947.zip
PD1805_A_7.7.11-update-full_0612182845.zip
- Android 9.0 Pie (Funtouch OS 4.5)
PD1805_A_6.13.18-update-full_0509180722.zip
PD1805MA-patch_6.13.18_for_6.13.15_0509180722.zip
PD1805_A_6.13.15-wipe-update-full_1557057405.zip (Downgrading from Q)
PD1805_A_6.13.15-update-full_0411233921.zip
PD1805MA-patch_6.13.15_for_6.13.4_0411233921.zip
PD1805_A_6.13.13-update-full_0329152256.zip
PD1805MA-patch_6.13.13_for_6.13.4_0329152256.zip
PD1805_A_6.13.4-update-full_0305194924.zip
PD1805MA-patch_6.13.4_for_6.13.3_0306172653.zip
PD1805_A_6.13.3-update-full_0223213213.zip
PD1805MA-patch_6.13.3_for_6.13.1_0223213213.zip
PD1805MA-patch_6.13.3_for_1.23.5_0223213213.zip
PD1805MA-patch_6.13.1_for_6.12.2_0126061839.zip
PD1805_A_6.12.2-update-full_0105095919.zip
- Android 8.1 Oreo (Funtouch OS 4.0)
PD1805_A_1.23.5-update-full_1550128123.zip
PD1805_A_1.21.3-update-full_1541422501.zip
PD1805_A_1.15.7-update-full_1530708851.zip
vivo NEX S (Global Model)
- Android 9.0 Pie (Funtouch OS 9.0)
PD1805F_EX_A_6.6.10-update-full_0529025648.zip
- Android 8.1 Oreo (Funtouch OS 4.0)
PD1805F_EX_A_1.11.2-update-full_1558355098.zip
PD1805F_EX_A_1.8.5-update-full_1536653837.zip
vivo NEX Dual Display Edition (China Model)
- Android 8.1 Oreo (Funtouch OS 4.0)
PD1821_A_1.21.10-update-full_1557717231.zip
PD1821_A_1.20.5-update-full_1552446745.zip
PD1821_A_1.19.4-update-full_1547454503.zip
PD1821_A_1.18.0-update-full_1545286901.zip
Is it possible on chinese version to downgrade from android 9 to android 8 without bricking the device?
freccia said:
Is it possible on chinese version to downgrade from android 9 to android 8 without bricking the device?
Click to expand...
Click to collapse
no only vivo service center can do the downgrade!
Official Link for PD1805F_EX_A_6.6.10-update-full_0529025648.zip Added.
jjjhitel said:
Official Link for PD1805F_EX_A_6.6.10-update-full_0529025648.zip Added.
Click to expand...
Click to collapse
Heyy thanks a lot. Can we local update with global??
Third version of Android Q Developer Preview Added.
Could YOU add the new funtouch os9(china version) 7.8.2 ? Thanks
DjEnry77 said:
Could YOU add the new funtouch os9(china version) 7.8.2 ? Thanks
Click to expand...
Click to collapse
I don't have this device now, so I can't get the code by myself.
Can i flash a global rom, on a chinese with this software version PD1805_A_7.8.2?
Added download links for PD1805_A_7.7.11, PD1805_A_7.8.0, and PD1805_A_7.8.2.
conny005 said:
Can i flash a global rom, on a chinese with this software version PD1805_A_7.8.2?
Click to expand...
Click to collapse
no
From
vivo NEX S (Global Model)
- Android 9.0 Pie (Funtouch OS 9.0)
PD1805F_EX_A_6.6.10-update-full_0529025648.zip
U will upgrade to PD1805F_EX_A_6.7.1
Really nice thread !! A great piece of work who need to be PINNED !!
Hi. I have problem because after flash Android 10 I want back to 9 version but I istlall wrong version( not the downgrade one 6.15.13) but my old 6.7.2 and after that I have bootloop. can't go to recovery mode.
Enybody has image recovery file to flash via fastboot?
vivo nex A PD1806 frimware
For the Vivo nex A, please install the full rom package for the PD1806_A_7.7.2 update.
How is the flash Method?? Download ZIP and next?
Bonjour,
Quelle version choisir pour un Vivo Dual Display ? Je souhaiterai Android 10.
Merci.
JM
I got an OTA update to firmware PD1805F_EX_A_8.8.10 (FuntouchOS 10 on Android 10) on my Vivo Nex India variant.
Since the update I'm facing numerous issues like:
1. Super fast battery drain (Android system seems to be hogging most of it)
2. Various app crashes
3. Albums app not working which effectively blocks all image related featurs like Camera, Insta/Whatsapp/Facebook image sharing, any app with any action related to images/videos
4. Unable to read music/ringtone files on my device (hence no ringtone alert for calls)
5. overheating while charging and using any apps at all.
I want to downgrade to FuntouchOS 9. Can I safely copy the PD1805F_EX_A_6.6.10-update-full_0529025648.zip file to the Download/upgrade folder and selecting Local Upgrade from the System update settings?
Rituraj Dutta said:
I got an OTA update to firmware PD1805F_EX_A_8.8.10 (FuntouchOS 10 on Android 10) on my Vivo Nex India variant.
Since the update I'm facing numerous issues like:
1. Super fast battery drain (Android system seems to be hogging most of it)
2. Various app crashes
3. Albums app not working which effectively blocks all image related featurs like Camera, Insta/Whatsapp/Facebook image sharing, any app with any action related to images/videos
4. Unable to read music/ringtone files on my device (hence no ringtone alert for calls)
5. overheating while charging and using any apps at all.
I want to downgrade to FuntouchOS 9. Can I safely copy the PD1805F_EX_A_6.6.10-update-full_0529025648.zip file to the Download/upgrade folder and selecting Local Upgrade from the System update settings?
Click to expand...
Click to collapse
Even the MTP connection didn't work, so couldn't take bacup of my media files.
Resorted to factory reset as a last option.
Good news: got the phone up and running on the latest update without any of the issues specified earlier.
Bad news: Lost all my multimedia files including some really cool ringtones and wallpapers I spent ages finding.
Well, you win some, you lose some. My advice, backup all your data before initiating the latest update.
Updated or downgraded
Rituraj Dutta said:
Even the MTP connection didn't work, so couldn't take bacup of my media files.
Resorted to factory reset as a last option.
Good news: got the phone up and running on the latest update without any of the issues specified earlier.
Bad news: Lost all my multimedia files including some really cool ringtones and wallpapers I spent ages finding.
Well, you win some, you lose some. My advice, backup all your data before initiating the latest update.
Click to expand...
Click to collapse
So u downgraded or you are running the latest update if I want to downgrade the latest update any guide
Currently have funtouch OS PD1924_A_6.14.0 possible to put a English rom on this phone .
Cheers

Update android 7 to 8

Hi guys,
I would like to develop a custom rom for an android 8 for a phone based on android 7.0
I have access to the original rom on 7.0
how to update android 7.0 to 8.0? Tutorials?
The phone is based on a Helios P25 mediatek 6757CD hardware , kernel 4.4.15, java 2.1.0 opengles 3.2
GPU mali t880.
I'm a programmer in java but not in phones.
I can upload the custom os but still black screen. I just replaced the scatter file in the new os android 8.0 --> black screen
The phone is rooted so I could replace the rom on it.
Thanks a lot

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