yashsingh1/xdaforums huggingface dataset:
[ZenFone 2 Q&A, Help & Troubleshooting] eugvor:
experiance and questions

I had CN version.

I used the last system.img for WW-2.18.40.12 from the last shared link. It's pre-rooted version.

Yestarday, I had OTA update of CN with 2.19.40 , it's not on official site yet, but I believe it will come soon.

When I did flash yestarday with WW-2.18.40 pre-rooted system.img, I had two problems:

1. When I started the OS for the first time after flashing, I've got constant error messages android.process.acore, since I'm new in Android world, I started panicking. But after googling, I found out it's typical problem of Android apps,

and to overcome the problem, i did clean cache of Contacts Storage and Contacts then problem disappeared.

2. After that I had another problem, Windows stopped to recognize the device on the USB. Charging, but no PC connection.

So I google again and started to toggle settings for USB in Android to see if USB start to connect again. After few different switches,

what helped is, I think: the switch on the USB Storage where you choice Memory -> for the USB connection, toggled PTP and back to MTP.

3. The last step was to put Asus original WW-2.18.40 from the site, but with putting that into internal memory storage, did not trigger the notification for update! Maybe it's because system.img already WW-2.18.40 ??? rename to CN did not help!

So now I have rooted version of 2.18.40.

OTA updates will not work and I don't know how to switch from rooted to normal. How easy to do this?

SU utility only closes the root forever?

I'm fine to stay on rooted, but I want to install last firmware later and go back to rooted state.

How to achieve this the easiest way?

Maybe my post will help someone to overcome problems with flashing to the 2.18.40. Regards!
[ZenFone 2 Q&A, Help & Troubleshooting] Skynet00:
Is there any way to fix the dead android when booting recovery issue? Like, I can get past it with power button + up but it bothers me. Spent like the last 6 hours trying to fix it and trying to understand why it's happening. It persists even after I tried to bring everything back to stock following the method in first post.

E:file path:/tmp/last_install

E:file path:/cache

E:file path:/tmp

Finding update package...

Opening update package...

E:file path:/sdcard/MOFD_SDUPDATE.zip

E:failed to map file

SD Installation aborted.

E:file path:/cache/recovery/log

E:file path:/cache/recovery/last_log

E:file path:/cache/recovery/last_install

E:Installation failed with status 1

E:file path:/cache/recovery/last_locale

E:file path:/cache/recovery/log

E:file path:/cache/recovery/last_install

E:file path:/cache/recovery/command
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Will not update!

Hi there and thanks for your answer

I did what you said and followed the steps

i copied the new firmware and changed the WW to CN but when i restart the phone it does not ask to install the new upgrade

what should i do?

i copied to the internal storage directly (should i copy it into a folder or something?)

please help me out

(BTW my phone is ZE551ML ZenFone2)
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
bluestar110h:

Did you flash firmware or just copied it to internal disk?
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
I just copied it to my internal disk

but the 3 files (*.img) i flashed them using cmd)

I copied this: UL-Z00A-CN-2.15.40.13-user
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
bluestar110h:

Did you followed this how-to exactly or did you have difficulties?
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
how to update now to the latest firmware WW_2.18.40.12 if i am on Version WW_2.17.40.12
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
I exactly did as said in the How.to

everything went smoothly

the only problem is that when i restart my phone it doesn't recognize the upgrade.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
Hey bluestar110h

have you tried also to let the firmware name to WW

not all the time is necessary to change the name to CN
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
Well, it looks like we are on the same boat. I did exactly the same but phone does not recognize update. But it should not be problem because your phone should be updated to latest fw.

What is revision of yours phone fw?

janpavel:

Follow how-to on frist page this topic. Just flash it on latest fw.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
have you tried also to let the firmware name to WW

not all the time is necessary to change the name to CN
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Yes my friend. i tired both ways.

BTW right now my build number is : LRX21V.CN-ASUS_Z00A-2.19.40.16_20150611_1687_user

Maybe i cannot upgrade because my build number is high?

What can i do to solve this issue?

please help me out.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
ok than

try to start again with the flash

gow from step 1

go from here

** Boot.img, Droidboot.img and Recovery.img from this MEGA Drive posted by Chinaphonearena user and belong to Shakalaca.

** System.img - if you want your phone ROOTed on latest ASUS ZF2 Firmware.

III. Yeah! Im ready to do it

this time try to take the boot.img , recovery.img and droidboot.img form the firmware Version WW_2.18.40.12

download it from MEGA .........and every time when you flash the result must me ok .

Good luck
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Is there anyway for me to change my firmware from CN to WW?

---------- Post added at 04:42 PM ---------- Previous post was at 04:41 PM ----------

Will do.

Should i also download the new firmware? or i can use the 2.17?
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
yes just do the steps carefully what it's writed in the first post
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
I did everything.

But the phone doesn't recognize the update

what should i do so my phone install the new update?
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
just try one more time , mine worked like a charm
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
1. i Did the flash

2. copied the firmwork

3. changed the name to WW

4. restart

5. nothing happened!!
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
something you are doing wrong, it should work
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Just one important question:

My firmware buildnumber is 2.19.40.16 (CN) right now.

is it possible for my phone to recognize lower version updates like 2.18??

I'm adding 2 photos now.

One of where I copied the zip file the other is my phone's build number.

please help me out.

thanks
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
which one of the droidboot.img,recovery.img, boot.img you have flashed.

you have to put the update form exact flashed droidboot.img,recovery.img, boot.img

Ex. if you download and flash the droidboot.img,recovery.img, boot.img from MEGA for the WW_2.18.40.12

than after you flash you should put the update from WW_2.18.40.12 on your phone storage.

and if you wonțt have an update message then try to change the name from WW to CN
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
I flashed the same img files as the update version.

I tried changing the name from CN to WW but I didn't work either.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
did you restart the phone after changing from WW to CN
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Retort? or do you mean restart?

Yes i restarted my phone.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
hmmmm

maybe you will need to wait till 2.19.40.16 (WW) firmware or higher will be available , and than to flash again
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Hi there

I tried everything i could

but the update notification wont come up.

I Flashed successfully, i changed CN to WW and ....

but when i restart the update wont start.

(my build number is CN: 2.19.40.16)

please help me out.

---------- Post added at 04:24 AM ---------- Previous post was at 04:23 AM ----------

Oh... Im so dead... cause my current firmware doesn't work very good now...

Thanks anyway.​
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
Oh... Im so dead... cause my current firmware doesn't work very good now...

Thanks anyway.[/QUOTE]

I hope they will soon take out the WW version

Good Luck
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Can anyone please post the direct link for 2.18.40.12 (WW) update?

Maybe that one works on my system.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
Here you have it. just find out the WW version

http://www.asus.com/Phones/ZenFone_2_ZE551ML/HelpDesk_Download/
[ZenFone 2 Q&A, Help & Troubleshooting] bluestar110h:
Thanks but it didnt work either.

I think i have to wait for 2.19 (WW)

thanks
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
Yes, I tried. WW or CN, not popup.

But tell me. It is really necessary to update OTA if I uploaded system.img via ADB?
[ZenFone 2 Q&A, Help & Troubleshooting] eugvor:
Should work fine. It worked fine for me, I also had the same OTA 2.19(CN) and now I have 2.18WW pre-rooted installed. Waiting for 2.19 to come on Asus website to try.

---------- Post added at 08:17 PM ---------- Previous post was at 08:13 PM ----------

I did not install, because popup did not work for me. It runs fine for me with the pre-rooted system.img with 2.18 WW.
[ZenFone 2 Q&A, Help & Troubleshooting] DarkenVolk:
Hello,

I want to turn my CN firmware into a WW firmware.

My version is: CN-2.17.40.17

I'm a bit confused about which version of files should I download in order to perform this transformation, I've been reading a couple of posts but I'm not yet to be 100% sure on how to do it.

Can someone please forward me to the right files?

Many thanks!

i.imgur.com / FYOws5R.jpg
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
Hello

First of all download and install Necessary tools and Drivers

then download the latest firmware that you want to have on your phone . the latest firmware is WW_2.18.40.12

after you download the firmware go to Mega and download the necessary flash images boot.img , droidboot.img , and Recovery.img from the lattes firmware. ( 2.18.40.12 folder on MEGA)

After you have all of this just follow the steps carefully .

Good luck ;)
[ZenFone 2 Q&A, Help & Troubleshooting] DarkenVolk:
Wow, quick and very fluent reply!

"then download the latest firmware that you want to have on your phone" was the part missing in my puzzle.

Thanks a-lot!!

BTW, Mega might be currently unavailable?
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
if you want to have the latest firmware WW_2.18.40.12 then you download from MEGA from the folder Z00A_WW_2.18.40.12 the Boot.img, Droidboot.img and Recovery.img

for flashing

Say thanks to vivix and rate this thread for 5 STARS

Good luck;)
[ZenFone 2 Q&A, Help & Troubleshooting] vivix:
Thread has been updated.
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
You have old (2.17.) FW version mentioned in your first post on this thread. I assume you want to update it for 2.19.?

Got some free time so I was checking out that 2.19. update. There is nothing on asus.com. And, in MEGA folder 2.19. there is no recovery.img, boot.img, droidboot.img, just packed system.img.

So, does it means I need just flash latest system.img (2.19.)?
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
you just flash the firmware you want, after this you can update to the latest firmware . ;)
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
Thanks for reply but I have two more questions for you (or anyone who can reply).

I´ve flashed firmware from 2.15.40.13 to 2.18. I make everything as is writen in this how-to (basically flashed all images, even pre-rooted system.img). Didnt get any pop-up about new OTA update but whatever, like somebody writen, it should be okay now (and it is).

Now, how can I flash firmware to 2.19. - just flash that 2.19. system.img over ADB cmd from here?

So I dont need to flash recovery.img, boot.img and droidboot.img (from 2.18.)? Because in that MEGA drive, there is no recovery.img, boot.img and droidboot.img.

Maybe those are silly question but I dont want to mess up my phone.
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
I think the 2.19 is not yet released because on the official website from asus is no 2.19 firmware, it is possible to be the next update

If you want a pre-rooted version of 2.19 in the future then you need to flash system.img from 2.19, if not you just wait for the official update of 2.19.

I hope now it's clear for you ;)
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
Well, I read few posts (somewhere else) about ppl getting OTA updates.

As you can see it for example here. So I assumed there will be update on asus.com and on this thread.

I was wrong (of course :) ) but strange is, on that MEGA drive folder there is 2.19. folder with system.img.

I know system.img is pre-rooted and have no problem with it. It is just that MEGA drive folder contains 2.19. system.img but no other *.img files like is in 2.18.

Maybe you pointed out it already, sorry if so (my english is not that good). I just want to be 100% clear on it :)
[ZenFone 2 Q&A, Help & Troubleshooting] DarkenVolk:
Done!

Thanks a-lot!
[ZenFone 2 Q&A, Help & Troubleshooting] lvader:
im stuck in point 3

in cmd say "waiting for device"

it seems a problem of drivers?

sorry for the bad english
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
Hello

See if your driver's are installed correctly, right click on My Computer/Properties

than select Device Manager and see if your device is correctly recognized.

Install the drivers again and try again with point III

I hope this will help

Good luck ;)

Say Thanks to vivix and rate this thread 5 star if worked for you
[ZenFone 2 Q&A, Help & Troubleshooting] lvader:
thanks a lot, it was a drivers problem

Now i have other problem

I´m unable to sideload the lates rom i get error 7

is posible that i flash it on fastboot?

I mean : fastboot flash UL-Z00A-WW-2.18.40.12-user.zip

thanks
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
After you flash the .img just copy the firmware that you have flashed on the internal storage

and you should have the message.

If no message for u just follow ....

V. Dam! No Notification!? what now...

** Boot your device to fastboot mode Power + Vol Up to enter Bootloader Mode

** At Bootloader press Vol Up to choose Recovery Mode

** You will see an error message of updating ota. Wait 5 sec and then press Power + Vol Up simultaneously until you see recovery menu.

** Using Vol Down + Vol Up choose ADB mode and connect your phone to PC via USB cable

** You need Fastboot version 1.0.32 and up to make ADB Sideload working properly with Zenfone 2

** Extract Fastboot.zip somewhere at your PC and put OTA update file ( .zip) in same folder as Fastboot.

** Hold down Shift and Right-Click anywhere in Fastboot Folder on your PC and select Open command here. It will launch a Command Prompt Window for you to issue commands to your device.

** Use command : adb sideload filename.zip

** At 100% it will go back to Recovery Mode main menu. Restart your phone.

Good Luck
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
Hey again.

Friend of main gets "no error" message when trying flash system.img.

Viz this image with procedure he did did in cmd (yes, there is a Czech language but I think it is not important for now).
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
is the system.img copied in the Fastboot folder where the rest of .img are .

Try to download again all the zip files that contains the system.img the and extract it. The error message is that the size is not good.

Say Thanks to vivix and rate this thread 5* if it worked.

Good luck ;)
[ZenFone 2 Q&A, Help & Troubleshooting] aiwnios_psaras:
Hey guys!!! Can i find anywhere the 2.19....22 prerooted????At the mega folder there's only the 2.19......18....I am currently at the 2.17 prerooted and i would like to go on at the 2.19 this way????What else can i do?Unroot via SU and update manually by renaming etc, the whole last one from the asus site?Thank's in advance!!!!
[ZenFone 2 Q&A, Help & Troubleshooting] janpavel:
i think you have to wait till you will find the 2.19.40.22 prerooted the update is to fresh. Check back in few days maybe yo will find the prerooted version. ;)
[ZenFone 2 Q&A, Help & Troubleshooting] -fluffy-:
It is up on mega now
[ZenFone 2 Q&A, Help & Troubleshooting] Immortel.CZ:
You was right. He was trying to push md5 checksum file instead of system.img lol...

Well, nobodys perfect. Now it is all fine. Thanks!
[ZenFone 2 Q&A, Help & Troubleshooting] yemnic:
Tanx vivix...
[ZenFone 2 Q&A, Help & Troubleshooting] awkwardviolence:
Hello everyone.

So I recently attempted flashing my CN ZF2 to WW and I followed the steps and everything and once I was done with the command prompts on ADB I unplugged my phone and restarted it. Once I plugged it back in I realized that my computer wouldn't recognize my phone. I restarted my computer and reinstalled input drives but I would still get no response. I even realized that I couldn't even take the phone off USB debugging. Every time I would try unchecking it from the settings menu the phone would automatically reset itself.

I thought I followed all the steps correctly, but obviously my phone is acting a lot different now and I really need someone to lend me some help. Thank you.
[ZenFone 2 Q&A, Help & Troubleshooting] -fluffy-:
Try boot into bootloader an then connect the USB it shut now try to install driver's
[ZenFone 2 Q&A, Help & Troubleshooting] W0isq:
There is new WW OTA relased. I will sent you link in a PM (i have new account and I can't post external links..)

Changelog:

ZenFone2 (ZE551ML) firmware update to version V2.19.40.20_20150623_3115

Update as follows:

1 improvement in HDR mode resolution pictures occasional green line issue

2 improve the video quality

to improve the stability of the power saving mode 3 applications and resolve memory problems WIFI hibernation settings

from 4 to improve the stability of launch management applications and solve ban The APP still receive push notifications question

5 amended information will come in only the first seal ring notification

6 to improve grid stability SIM2 signal

APN table 7 Update

8 Update Intel houdini database

9 Fixed camera using organic whims abnormal ZenFlash The problem

is abnormal sound recording 10 Fixed

11 Fixed FM Radio volume is abnormal

12 abnormal amend section Bluetooth devices

to improve service reliability 13

14 to improve the stability of the modem

15 to answer the call to improve the stability of the

16 lifting fast reading mode setting feature

17 improved System UI stability and correct Japanese string

18 to improve the stability of the interface-related lock screen

wallpaper 19 solve the problem of infrequent anomalies

enhance privacy mode function 20

21 solve the language setting to produce results is abnormal contact

22 to improve since the launch of the management interface and application stability of

23 to improve the stability of the Task Manager and UI issues

resolved quickly switch to 24 calculator dysfunction problems while typing

25 launcher improve stability and Multi user use

26 to solve the Google Voice call source of the error unusual problems

to solve 27 under Multi-User Desktop Missed calls show unusual problems

28 improved File Manager stability

ZenUI 29 new ASUS PC Suite

30 users resolve after switchback Owner ZenMotion touch gestures unusual problems

to solve browser built 31 new incognito window problems

32 Solving Close Magic can not use Bluetooth audio problems

33 updates a number of third-party application

updates Touch FW 34

35 Update JP ATOK IME

36 to modify the power saving mode Japanese string

37 amendments Zenmotion Before turning the camera must first unlock the question

38 Fixed issues related to privacy mode exception

39 amendments set wallpaper unusual problems

corrected built 40 new incognito browser window dysfunction problem

41 Fixed close contacts have other software problems

42 setting error correction built-in calendar issue

43 amendments when the camera is off camera sounds, ringing mode unusual problem

44 Fixed volume keys to adjust the ring tone is abnormal

45 amendments wallpaper broken graph problems

46 correction system optimized and managed to jump out from the start of the message has ceased operation

increased 47 completion of charging battery indicator function​
[ZenFone 2 Q&A, Help & Troubleshooting] Ntrasme:
I'm stuck in a bootloop after uninstalling xposed, how can I flash just /system and not lose data?
[ZenFone 2 Q&A, Help & Troubleshooting] xbbdc:
hello, please help! my phone is currently bricked. i came here hoping my problems would be fixed but it's not working for me. i am getting permission denied when i try to flash the img files. any ideas why?

C:\Users\Downloads\android\Fastboot\Fastboot>fastboot flash recovery recovery.img

target reported max download size of 536870912 bytes

sending 'recovery' (11864 KB)...

OKAY [ 0.608s]

writing 'recovery'...

FAILED (remote: Permission denied

)

finished. total time: 0.790s
[ZenFone 2 Q&A, Help & Troubleshooting] xbbdc:
I was able to flash TWRP with the flashboot method and tried to install the ZIP file from here - http://www.asus.com/us/Phones/ZenFone_2_ZE551ML/HelpDesk_Download/ (DL - http://dlcdnet.asus.com/pub/ASUS/ZenFone/ZE551ML/UL-Z00A-WW-2.19.40.22-user.zip) and it gives this error:

assert failed: getprop("ro.build.asus.sku") == "WW"

E:Error executing updater binary in zip '/external_sd/UL-Z00A-WW-2.19.40.22-user.zip'
[ZenFone 2 Q&A, Help & Troubleshooting] xbbdc:
Ok i was able to fix the problem. I was still able to load TWRP by flashboot, which I used to fix permissions and clear cache. The problem started because I went into normal recovery and went to wipe cache partition to load the SuperZen rom. The cache wipe seemed to take long, so I turned the phone off and back on and the only thing I was able to load was the fast boot. No recovery or normal mode worked, just ended up with a dead android. After fixing cache partition, I reloaded same 3 img files, kept getting permission denied error. Tried to get into recovery again and this time it worked! I used ADB sideload to flash the zip file above and it worked!
[ZenFone 2 Q&A, Help & Troubleshooting] vali.cheche:
hello, I have a ZF2 that came with some issues (CN SKU and an outdated WW OS that was acting up even after full reset).

I changed the fw to WW and upgraded to the latest WW version by sideload.

However, due to heating and instability issues I want to return the device and I want to flash it's loader/recovery back to CN.

But now that I look around, I can't find CN boot/recovery stock images. Only WW ones.

Everyone is trying to go away from CN, I want to flash it in. :laugh:

Can anyone please help me with those CN images (boot.img, recovery.img, droidboot.img)?

Thank you.
[ZenFone 2 Q&A, Help & Troubleshooting] -fluffy-:
if u have the ze551

then here is the recovery/boot/droidboot

fore CN version

https://mega.co.nz/#F!k4MHiAgL!dVuOKeH3eokcwPSNI79ffw
[ZenFone 2 Q&A, Help & Troubleshooting] vali.cheche:
Yes, I have the ZE551. Forgot they have 2 variants and many versions of each.

Thank you very much. Worked a charm. :)
[ZenFone 2 Q&A, Help & Troubleshooting] -fluffy-:
U are welcome
[ZenFone 2 Q&A, Help & Troubleshooting] migueli2:
Hello all,

I think at this point i tried every way and solution posted in this forum for my ZE551ML

IT was rooted so i used 1 click UNROOT then when he rebooted he wount pass throu ASUS LOGO it keeps the weel spining.

Last try was the solution on this thread 1st post and still the same. All the process OK but when i reboot phone e gets to the same ASUS LOGO stuck.

Any ideias?

I'm kinda stressing here would much apreciate a little help!

Thanks

---------- Post added at 04:09 PM ---------- Previous post was at 03:19 PM ----------

Once i wount rest till i see some light i managed to make it happen!!!!

I just "adc sideload 'file_name'" then restarted and worked!
[ZenFone 2 Q&A, Help & Troubleshooting] ityoung:
go baidu tieba, there wrote a way to flash ww back to cn.