[How to Upgrade] Zenfone 5 to Lollipop manually - Step by Step with screenshots

Last edited by Toonster on 2015/6/5 22:45 Folks! The Lollipop update is here and I have just upgraded my Zenfone 5 to Lollipop 5.0 I also managed to document it step by step with screenshots for new users to update without any hassles. I have covered 2 processes in detail in this post. Scroll down and read as per your need. 1.  Manual update to bridge firmware  ver 2.22.40.53 2.  Manual upgrade to Lollipop 5.0 Since there were bugs the Zenfone 5 bridge update Ver WW 2.22.40.53  was stopped but its needed for a smooth transition from kitkat to Lollipop.So I will Show you step by step to first update to Ver WW.2.22.40.53 manually then update to Lollipop. There is also a new FOTA update available for 2.22.40.54 WW .If you get that then update it instead of manually updating to 2.22.40.53( but some people mentioned that there are problems updating manually from 2.22.40.54)... so I suggest that you manually update to.2.22.40.53 to smoothly update to Lollipop. Note :  If you are already on the bridge firmware then scroll down directly to the Lollipop firmware update steps. ---------------------------------------------------------------------------------------------------------------- >> Manual update to Bridge firmware ver WW 2.22.40.53--------------------------------------------------------------------------------------------------------------- Step 1: Download the firmware from Asus website directly on your Zenfone 5. (749 mb)http://dlcdnet.asus.com/pub/ASUS/ZenFone/A500CG/UL-ASUS_T00F-WW-2.22.40.53-user.zip You may also download on from your computer and transfer it to the folder shown below using your USB cable. I have done a direct download on my zenfone 5 over wi-fi   Step 2: This will download in the Download Folder in the Internal SD. Cut paste the zip file from the Download folder and copy it outside the download folder into the Internal SD as shown below. (Do not extract the zip file)   Step 3: Then restart your phone by pressing Power button. It will show you an option to Restart . After restart the phone will show a triangle notification on the status bar . ( If you do not get notification, disable data and reboot) Pull down the notification panel and you will see that a system update is available. Tap on that you will get this prompt to select the update package as below. Select OK.   You will get a warning that your battery should be atleast 15% charged. I would advise that you charge above 25%. Select OK to start the update process.   The phone will reboot to Boot loader and begin updating.   You can see that the system is updating.   After updating the phone will reboot again and show that the Android apps are getting updated.This may take sometime . The overall process may take around 10 mins.   The phone will reboot to home screen and prompt you that the phone has been updated succesfully.You can also check the updated firmware build number from settings > about > software information   ---------------------------------------------------------------------------------------------------------------------------------- >> Now Lets Upgrade to LOLLIPOP 5.0 ------------------------------------------------------------------------------------------------------------ Manual update to firmware ver WW 3.23.40.52 ( Lollipop firmware) Step 1: Download the Lollipop firmware from Asus website directly on your Zenfone 5. (700mb) http://dlcdnet.asus.com/pub/ASUS/ZenFone/UL-ASUS_T00F-WW-3.23.40.52-user.zip   Step 2: This firmware will download in the Download Folder in the Internal SD. Cut paste the zip file from the Download folder and copy it outside the download folder into the Internal SD as shown below. (Do not extract the zip file)   Step 3: Then press and hold power to get Restart option and Restart the phone.   After restart the phone will show a triangle notification on the status bar . (If you do not get notification, disable data and reboot) Pull down the notification panel and you will see that a system update is available. Tap on that you will get this prompt. Select OK.   It will again prompt you the warning message that battery should be around 15%. As a precaution I have charged it above 25%. Select Ok and the phone will restart and begin upgrading to Lollipop.   You will see that the System update is being installed. It could take a while to complete this process. Then the system will reboot again.   This time you will see that "Android is upgrading" . After optimizing all apps the system will reboot to home screen as below. This may take some time.   Finally Zenfone 5  upgraded to Lollipop. You will be greeted with the unmistakable Lollipop notifications as the phone boots and also you will get a prompt that the system update is successfull. You may need to update Google Play services after the update, so please check it and do so.   I hope my efforts have been helpful in getting you closer to sweet Lollipop on your Zenfone 5