Android users did not have this problem, but once version 5.0 lollipop started rolling out, a lot of them started seeing the android optimizing apps message after a reboot. specifically, what they got was “android is starting. optimizing app 1 of x,” with x being the total number of apps they installed.. First, please understand that the android “optimizing apps” process is completely normal, and occurs in order for your device to rebuild the dalvik-art runtime environment after an update, factory data reset, or other modification to the android os.. "android is upgrading, and afterwards it came optimizing application 1 of 158", later came as starting apps then tecno will come and the upgrading starts again for more than 24 hours. i need a solution to stop it and have access to the phone. i cant do anything with the phone so please give me the right solution.
1) i am using the phone from last 1.5 years but from 21st april 2018. i got the following message android is starting optimizing app 1 of 1 and took 15 to 20 min. to start. which is very time cousuming and i do format my device but it will not solve the issue please povide us the solution.. Earlier android os used to run on dalvik runtime which means apps used to compile at the time of execution. but now, android has switched to art with lollipop version. it means all the apps will be compiled beforehand making them launch faster. so "optimizing the apps" basically means android is compiling all the apps.. My nexus 5 after latest 5.1 upgrade keeps restarting randomely and many times optimize the apps after restart. very annoying i already tried factory reset and device cache cleans, seems like an os issue..