Issues with zenfone 2 laser ze550kl

yeah same with me...after latest update on my phone ...asus 2 laser... battery is draining too quickly ...which use to not before
once i get charged 100% it drops to 95 even phone is rest mode n while usin its worst ...same with my friends phone

@ Suraj
which custom rom u usin??

Myth0703 posted on 2017/8/13 15:07
@ Suraj
which custom rom u usin??

Changing from Tym to Tym resurrection remix viper is etc.

Hi Suraj,

WW_ V21.40.1220.2179 is the new firmware for your device.

Kindly update your device and check if the battery issue persist.

If you have not yet received the FOTA, you can update it manually.

You can also go to ASUS official website to download newer firmware and instruction manual.
Note:

    Please make sure the firmware SKU you download is conformed to what on your phone, eg., WW -> WW, CN -> CN, TW -> TW. Incorrect SKU will lead to update failure.
    You can not change the SKU from one to another, eg., WW -> TW, and also can not downgrade your firmware, eg., V2.20.40.13 -> V2.19.40.18.
    During update process, please charge your phone with AC adaptor or make sure the phone has at least 15% battery life.


Steps for update:
1. Go to "Need Help?" page of ASUS official website http://www.asus.com/support to download ZIP file of firmware.
    Note: Double click the ZIP file after downloading is completed. If the content is another intact ZIP file (as shown in red on picture below),
              please upzip the file again.
             If the content is not an intact ZIP file (as shown in yellow), you do not have to do anything.
             Close the ZIP file after check.
   


2. Connect your phone with PC via micro USB cable, and copy the ZIP file to the root directory of internal storage of phone.
   


3. Detach micro USB cable from the phone to make the notification for firmware update poped up on status bar.
   

4. Tap "System Update File Detected..." and follow steps to update firmware.
    [img]http://www.asus.com/zentalk/data/attachment/forum/201506/06/220723df22fer00we0m4mj.jpg.thumb.jpg[img]


Note: Steps or photos shown above may have variation by different models.


For some upgraded versions that have great difference, e.g., from Jelly Bean (Android 4.3) to KitKat (Android 4.4),
you may need to upgrade to a "bridge version" in advance to proceed.
Please see picture below for example.

Hi srujan, 
 Bro how did you install the custom rom.. Please help me with that.. Because i am also facing the same issue's with my handset 

Hi suraj, 
Bro how did you install the custom rom. Please help me with that. Because i am also facing the same issue's with my handset.. Which rom are you using now

Hi Suraj,

Hope your issue is resolved.