Stuck on "Android is starting... Optimizing app 1 of 1."

After the tablet/phone eventually boots - look at the Battery setting and find the app that using the most battery in the last startup. This is most likely your problem. Trying uninstalling that app and restart.

Found this on another forum and it was MyFitnessPal that was causing the issue and it was listed as using 100% battery in the Battery list after the tablet finally booted from Optimizing app 1 of 1.

Reboot your tablet into recovery mode, as follows:

• Hold 'vol down' and 'power' buttons on tablet

• Release 'power' when samsung image is shown

• Release 'vol down' when the two icons are shown

• Use the 'vol down' to navigate between the icons

• Highlight the left icon (box)

• Press the 'vol up' to select it and boot into recovery mode

In Recovery mode, 'vol up' and 'vol down' move up and down in the menu, and 'power' button selects.

First try the 'wipe cache partition' and reboot.

If this doesn't help, follow the instructions above then use the 'factory reset' option instead.

Uninstall Zedge. Just worked for me.

I was having the same issue with my lenovo device. If u have true caller installed then remove the aap and check.

I had the same problem for approx. 4 days and all I did was not turning off my phone because it had irritated me so much. But now I can finally share that my phone has gone back to normal. I dont know the exact reason why, but I suspect that the Android Webview System had something to do with it because today there was an update of the app and I restarted the phone after updating and now its alright.

I have been struggling with this for the last couple of days, finally found the culprit after removing all of the suggested apps on this board to no avail. For me it was MYFITNESS PAL. Restarted with no delay, even tried to install it again to test it and it took 20 minutes to install from the play store. Immediately deleted it as it was the obvious problem. I'm running Android 6.01 on an S6 if anyone cares to compare.

Went to Battery and identified the app which had used largest percentage of battery just after starting up even though it was not running in background...was BitTorrent in my case...removed it...and problem was solved...

'optimizing apps 1 of 1' started after I updated 24 apps from play store...so it was difficult for me to find which one was causing the problem... When the phone started after 'optimizing apps 1 of 1'...I directly went to settings>>battery and saw the app with largest battery usage and uninstalled it(That app was not even running in background then too it had used 30% of my battery...I inferred that it had used my battery during optimization)...I restarted and problem was solved...phone started normally then...This means that whatever app causes the problem...it starts during the startup process during optimization and uses battery...so you can easily identify that app just after the phone starts by checking it in settings>>battery...

This works if the number of apps which optimize during startup are very less like 1 or 2...and they are usually the ones which you have updated recently from play store...but if many apps start optimizing during startup like 43 or 68 then problem may be little different and this method will not work in that case...

I was stuck with 2 apps that were causing the problem. I uninstalled Zedge which was one of the apps. After rebooting and waiting for the other one to optimize I went directly to Settings/Battery and there I saw the only app that had taken up battery during the boot was on of my favorite apps Relax Melodies. I uninstalled that and then rebooted again. My phone boots normal now. I believe Relax Melodies had an update recently which may have been a contributing factor.

Acabo de tener el mismo problema exacto en mi telefono. Después de hacer algunas excavaciones, parece que esto sucede cuando Android tiene un problema para optimizar una o más aplicaciones, por lo que obstinadamente las vuelve a intentar todas. Así que desinstalé aplicaciones una a una y reinicié, y el problema desapareció después de desinstalar tubemate 3.0.

Como no quería dejar mi teléfono sin tubemate , fui y descargué la última versión estable (2.4):

Uninstalling "truecaller" did the trick with my LG G4. So to conclude, there will be some app which might be causing this so try uninstalling a few from the list below and it should work fine:

1. Zedge

2. True Caller

Or some other app which might be doing this so you will have to try removing a few app and see which one is causing trouble.

ATB!

For me it was Allmemes app and all trails app

I also understand Zedge causes problems.

Unis tall those app and all is good.

If not sure which app causes conflict go to settings and battery after boot up and check which apps opened during boot up process and then remove them.

I removed ZEDGE and was still receiving "optimizing".

I then cleared the "Cache" for all my apps.

Restarted my device (tablet) and it worked!! No more "Optimzing" it started right up.

Hope this will help someone because I know it is quite annoying.

Uninstalling true caller helped

Lenovo Vibe k5 note, issue resolved with the solution suggested above.

"True Caller uninstalling"

Removed YouMail voicemail app and problem gone! I had this problem on my ZTE Blu phone. I did a factory reset and the problem came back because I reinstalled this app. After reading all of the comments I was able to figure out which app it was. Thanks so much!

Alcatel a5 led

Android users having problems with phone try uninstalling the SKY SPORTS FOOTBALL SCORE CENTRE app. My phone was acting strange. Random reboots and each time the sky shortcut disappeared. I ended up factory resetting my phone. Then after a reboot I found it took ages and was optimising app 4/4 for half an hour until it booted. I read about a couple of other apps causing this which I don't have. Also I read about certain apps taking ages to install. Sky sports was one of these about ten mins to install. So I uninstalled it and hey presto by phone is back up and running great. Boots straight away! If only I knew this before I reset it however other apps have installed better pi music player has the skip track function on lock screen now.

optimizing app android

android iso satarting optimizing app

This is my solution and it works

Well there is 2 ways

When u r in the optimizing app section, press and hold the power button until it reboots

Done

.

If that doesnt work,

Just go back to the optimizing apps section

Wait for a min or 2, then press and hold the power button just like the first method then poof

Done

I have resolved this problem by uninstall the tubemate app. Now everything is o.k. Might be another app like tubemate which show " this app is harmful for your device. So not to try install this kind of app.

Sher Akbar

Islamabad

thanks very much

its good

my phone is working nice

There is nothing you can do. You have to hold power and arrow up button till a list of options come up select factory data reset then your phone will restart set up your phone like you would if you just bought the phone and put your Google play store Gmail n password and you should get pics videos n contacts back then uninstall Zedge and it won't happen anymore. I worked for Verizon for 6 years and now att for a year and there is nothing you can do that works but what I said.

Works perfectly uninstalled true caller and problem disappeared.

I removed Zedge App and the problem was fixed. Thank you

I removed the Zedge app and it worked thank you

Same issue I was facing in my phone. I tried all the solutions provied in the internet blogs. In my scenario the error message was 'Anroid is starting and optimising apps 1 of 1. Then I spoted on 'Truecaller' app. This app use to restart many times in a hour. So, I deleted it and cleared cache once. Then I rebooted the phone. My problem was solved. I rebooted many times and tested it again and again. Issue solved. In your scenario, it could be '1 of n' when 'n' is a number. So, in your phone there could be more apps which restart in intervals. You have to find it out. Cheers!

Mine did it for the first time, well I got much worried at it and googled. Found this site and thought perhaps it is because of Truecaller coz I updated just today. Rebooted phone several time but the same screen appeared. Well at last I left the phone on the same screen and kept reading the answers here. Probably after 10 minutes the screen disappeared and my phone was working fine. I assume there are (is) some app (s) taking too long to load due to which the screen keep saying optimizing 1 of 2 apps etc. So I suggest you to wait for some time and let it take awhile.

The apps that cause this problem are:

1. Super pads light

2. Truecaller

3. Zedge

I m saying these apps the culprits because these are the only apps that takes a long time to get installed. I think many peoples has observed it.

i uninstalled True Caller and it worked.

Here are instructions to reinstall Truecaller again after a necessary uninstall:

https://support.truecaller.com/hc/en-us/...

Hi, had this problem to on my leveno tablet, it was the update on Web viewer that was corrupted so I uninstalled the updates and it works great now

Hey,

Do you have Truecaller installed? If so, Go to settings/Apps/ Look for the app Truecaller, tap on the 3 dots and choose "Uninstall updates" .. this resolved the issue for most users!

Android is starting optimising app 1 of 1

i had this problme i delete my "DUB MUSIC PLAYER"

it was fixed

Hey,

Do you have Truecaller installed? If so, Go to settings/Apps/ Look for the app Truecaller, tap on the 3 dots and choose "Uninstall updates"

Regards,

Jainam Panchal

lbold text lokenandra zane

I have had this problem for about 3 weeks on my ZTE MAX PRO then I just got a brand new samsung galaxy s6 today and it is doing it. I don't have any of the mentioned apps above what do I have to do to figure this out???

Had the same problem on LG G4. Solved by uninstalling TubeMate.

DO NOT PULL YOUR BATTERY OR SHUT DOWN YOUR PHONE!

It takes about 15 minutes for it to do whatever it's doing. It may take some phones less time and others more. Leave it alone and it will eventually boot up. Shutting it down may (or may not) brick your phone.

The app "Deezer" caused the problem. Once uninstalled, no more problem.

Per some suggestions here, I also deleted My Fitness Pal and now it only optimizes one app. Still a slight pain, but doesn't take nearly as long to reboot now. I then re-installed MFP and it still only optimizes one app upon reboot. How do I find out what the other app is that is hanging it up?

Tried removing Zedge. No help until I removed MyFitnessPal.......ThatWorked!!

I had the same issue with my ZTE ZMAx Pro. I eventually just let it work it self out (it took approximately 15-20mins to do so..sheesh!) I also noticed that this issue appeared after having the issue of "Stock Android is not operating" or something to that affect. I end up having to factory reset it (FTM) by holding the Vol Up + Power button.

At this point, I feel, ALL phone manufacturers and software producers s*ck! Although, ZTE is very affordable, I have lost faith in it, being I had two(2) ZTE's go bad within 24 hours of each other (one was brand new!)! Samsung or Apple seem to be leaders-of-the-(rat)pack! -Good Luck!

I managed to find out that its the app that takes most battery life. You can stop this buy going to your battery settings and uninstalling the app that takes the most battery life. and for me it was wattpad.

when its come on home screen after optimising you uninstall your apps one by one or two by two and restart phone after this .. its take your time but i am sure 100% you got the app which one creating the problem... after unisntalling every 2 app you restart ,, its easy to find out which application create problem always ... hope its useful ..

Do you have zedge? If so delete it. I had the same problem.

You guys are the best...thanks so much

Through process of elimination, I found the app that was killing my phone. Believe it or not it was My Fitness Pal. To make sure, I reinstalled it, and sure enough the error message "optimizing..." came right back. After uninstalling it again, I restarted the phone and it came on in seconds. By the way, that was the last app I installed on my phone, so think about that, and like another user said, check out the one that is taking up most of the battery.

Try disabling all screen overlays for all the apps, somehow I did this for another reason and the app optimization stopped as well.

If you are getting issue "optimising app 1 of 1" means one of the installed app is malfunctioning. I found true caller in my phone. After uninstalling it every thing is fine.

Optimizing app 1 of 1 solved on my LG G4: deleted "Stopwatch & Timer" app: Magenta green and white icon.

I have the Samsung tablet, two weeks old, no heavy usage app to remove, playstore uses most and I deleted it, no joy. Also did a factory reboot, worked once then same old same old gettingbso frustrated..takes nine minutes every time to start and that is for 1 of 1 apps. Thinking about returning tablet . Any comments.all welcome

In one of the posts, it's says look at battery usage, whichever app is taking up the most space, delete it. That's more likely the problem. If that doesn't work, time for new. That's what I had to do.

I took it as a type of virus and realized the problem might be connected to a recently installed (bad) app.

1) So I uninstalled the apps i had installed right before the problem started, making sure I unticked their permissions and force stopped before clicking on uninstall.

2)I also uninstalled utorrent (force stopped and took away permissions before uninstalling), Orbot and Orfox and a few ghost camera apps.

3) Next I cleaned all junk files with DU Speed which also cleans junk files from SD cards. And cleaned more junk files with Max Cleaner ( there's always more junk).

4) I clicked on Clean Virus in Max Cleaner app and it found a threat right away said "you are in danger"

(lol), and Max Cleaner (green and white icon with swiffer mop) automatically took it away.

5) Lastly, I went to phone settings and clicked "Storage" and cleaned hidden junk cashes in local phone & SD card and Reboot (you may not have to do this if you haven't encrypted your phone but check it anyway; if there are more than 2.00 megabytes click clean and ok).

The problem was gone!

I have also freed my pc from Ransomeware in less than 1 hour.

Sincerely Sandy the unofficial unsung good hacker.

Uninstalled zedge and it was still doing it did a reboot then looked at battery usage and uninstalled pictoword and rebooted and it started right up.

thanks fam.

i had same issue but after uninstalling utorrent, that "optimising app" screen never appeared again.

Mine just did it again today I had installed wtforecast so I uninstalled problem solved

Everyone got excited about Zedge doing this, but that isn't always the case. To find out which app is causing this, first charge your phone to 100%. Second, unplug and then restart your phone and it go they the optimize app. After the phone finally restarts, go into settings and then battery and check the battery usage since the last full charge. Normally display would be your largest battery user, but the problem app(s) that was optimizing is going to be at the to be at the top of the list. Just remove the offending ago and restart. That'll do it.

Why my Android say optimizing 1 of 1app and it takes a list 20 minutes

I found by checking Battery in Settings that 'Old Movies' was using 70% on startup. Removed, restarted, now OK.

Uninstall utorrent app :)

I uninstalled SoundCloud. Problem solved.

same question that samsung s6 stucks on optimizing but after delete the zedge application, now there is no optimizing.

thanks .

I had the same problem and only one answer from here helped me. It was from Sandy F. It is a virus or what I think is adware. I removed all apps I use that gave me an obscene amount of ads and the problem was solved and I was struggling with this for months. I think it was a free app that I used for work. Magnify + flashlight camera app since I work with and archive small electronic devices.

I have an LG G4 and it was Zedge and MyFitnessPal.