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[Resolved] [System] 1877 to 1998 update help needed guys

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Arulkumar IND Level 6 | All posts
ZenFone2 Bug Report
Model: ZE550KL
RAM: 2G
Firmware/APP Version: N
Frequency of Occurrence: N
Rooted: Yes
APP Name: N
Screenshot: -
Hi guys now i am in 1877 firmware how to update to 1998??? Some one is saying 1998 is only for people in 1943 update not for 1877...PLEASE CLEAR THIS DOUBT IS 1877 firmware CAN UPDATE TO 1998 OR ONLY 1943 firmware CAN UPDATE TO 1998?????????????
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IND Dr. Zen(IN) | All posts
   This reply is the best answer.   
Dear Arulkumar!
What User. mentioned is true.

Here is the  FULL FIRMWARE LINK. You can install it by two ways as follows:

01. Just download and copy it into the root of your Internal Storage. After ejecting your device from you PC you will get notification on top left corner of your device that System Update File Detected and tap and follow steps to update firmware. If you don't get the notification, just restart your device, you will certainly get the notification.

02. Just download and copy it into the root of your External Storage. Now switch off your device and enter into recovery mode. Select the option Apply update from SD Card. Then select UL-Z00L-WW-21.40.1220.1998-user.zip.

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OTHERS Level 6 | All posts
21.40.1220.1998 Update is for all users including 21.40.1220.1877. Both 1943 and 1877 have received it according to threads here in ZenTalk. It might take some time to get the FOTA update in your device or publish in Website for manual download.
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IND Level 1 | All posts
Where to I download ZenFone 2] [161216] ZE551ML_ WW_4.21.40.223(Android M) MR10.4
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koushikhalder posted on 2017/1/11 00:48
Dear Arulkumar!
What User. mentioned is true.


Hello asus my phon same ze550kl but when i in 1877 and 1943 i cannot get volte. As you told me for going service center. i went their when 1877 but they can't do any thing for volte . now what i do replay me.. Plz plz
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Arulkumar IND Level 6 | All posts
User. posted on 2017/1/11 00:31
21.40.1220.1998 Update is for all users including 21.40.1220.1877. Both 1943 and 1877 have received  ...

Thanks dude i will try it......
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OTHERS Level 6 | All posts
joga6213 posted on 2017/1/11 06:26
Where to I download ZenFone 2] [161216] ZE551ML_ WW_4.21.40.223(Android M) MR10.4

4.21.40.223 is available for manual download
Update Instructions : https://www.asus.com/support/faq/1009748
ZE551ML update.jpg
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OTHERS Level 6 | All posts
krishnendu.sani posted on 2017/1/11 08:20
Hello asus my phon same ze550kl but when i in 1877 and 1943 i cannot get volte. As you told me for ...

Wait for Asus / Moderator to reply or Create a new thread informing Asus the same.
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OTHERS Level 6 | All posts
Arulkumar posted on 2017/1/11 08:25
Thanks dude i will try it......

Ok.                                 
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