I am using a Sprint Samsung Galaxy SIII running Cyanogen Mod 11 LTE build.
I am new to the fourm. I know many people have asked how to change the download location before, but I am unable to even use a alternate downloader. I use chrome beta as my browser. I downloaded ES File Explorer and Download Manager, but it never prompted me to use either as the default downloader. I even went into the settings and cleared the defaults. It still never prompted me to use them. Can anyone help?
foxrumor said:
I am using a Sprint Samsung Galaxy SIII running Cyanogen Mod 11 LTE build.
I am new to the fourm. I know many people have asked how to change the download location before, but I am unable to even use a alternate downloader. I use chrome beta as my browser. I downloaded ES File Explorer and Download Manager, but it never prompted me to use either as the default downloader. I even went into the settings and cleared the defaults. It still never prompted me to use them. Can anyone help?
Click to expand...
Click to collapse
I use ES File Explorer also and if you want to change the download folder or location goto:
=> Fast access (swipe to right)
=> Go to settings (in back) - select
and you will see a another menu with: - display settings - cleanup settings - Directory settings
- Select and you can change your home directory - your bluetooth share path and your download path
You just need to search a little bit in your apk
philos64 said:
I use ES File Explorer also and if you want to change the download folder or location goto:
=> Fast access (swipe to right)
=> Go to settings (in back) - select
and you will see a another menu with: - display settings - cleanup settings - Directory settings
- Select and you can change your home directory - your bluetooth share path and your download path
You just need to search a little bit in your apk
Click to expand...
Click to collapse
Thanks, but for some reason it never prompted me to use it as a downloader. Do you have a fix for that? I think it is a very rare problem since I couldn't find anything about it on the form.
foxrumor said:
Thanks, but for some reason it never prompted me to use it as a downloader. Do you have a fix for that? I think it is a very rare problem since I couldn't find anything about it on the form.
Click to expand...
Click to collapse
No I'm really sorry.
Have you try to uninstall, wipe cache and dalvik by your recovery, and re-install.
foxrumor said:
I am using a Sprint Samsung Galaxy SIII running Cyanogen Mod 11 LTE build.
I am new to the fourm. I know many people have asked how to change the download location before, but I am unable to even use a alternate downloader. I use chrome beta as my browser. I downloaded ES File Explorer and Download Manager, but it never prompted me to use either as the default downloader. I even went into the settings and cleared the defaults. It still never prompted me to use them. Can anyone help?
Click to expand...
Click to collapse
You can try UC BROWSER. With this app you can set default download any where you want.
Sent using Tapatalk
george brown said:
You can try UC BROWSER. With this app you can set default download any where you want.
Sent using Tapatalk
Click to expand...
Click to collapse
I tried it, but it wouldn't let me pick my downloads folder on the sd card.
Well now for some reason es file explorer just started working. Thanks for your help guys!
Sent from my SPH-L710 using XDA Free mobile app
foxrumor said:
Well now for some reason es file explorer just started working. Thanks for your help guys!
Click to expand...
Click to collapse
Sounds good :good:
If your problem is resolved, can you change the title of your OP and insert [resolved]
Thanks in advance
I used Micromax Bolt A065,nd CM browser.
i want to change my download location, when i tap on -change download location option > internal storage. This browser show me that- No permision, how can i fix this problem plz help me guys
Related
I have some issues with a device I bought (coby internet tablet 7015) that have resulted in my being unable to use the android market (I always get a 404 error) or the app that came with it (appslib) I seem unable to install any apps (with .apk) because I do not have a file manager. I'm looking for a way to install apps without one, or maybe one I can install that is not in .apk format!
ryladine said:
I have some issues with a device I bought (coby internet tablet 7015) that have resulted in my being unable to use the android market (I always get a 404 error) or the app that came with it (appslib) I seem unable to install any apps (with .apk) because I do not have a file manager. I'm looking for a way to install apps without one, or maybe one I can install that is not in .apk format!
Click to expand...
Click to collapse
Go into your browser on the device and find an apk for a file manager, then download it. when it's downloaded you should be able to open it through the browser. Then you can copy over an apk for ME (MarketEnabler) and install it. ME will let you use the market.
I wrote down some options:
1. If you rooted your phone and such you can just use adb from SDK
Code:
adb install [dir/package.apk]
(usb debugging enabled).
2. If you have internet on your device, upload a file manager apk you downloaded from a pc and put it where your phone can download it from with the browser. So when the download on your phone is complete you can click on the finished download in the notification bar and install it the file manager.
3. You can also try appbrain.
Though I think you should first fix the market problem. How about resetting the phone?
You can also use DropBox. Download the .Apk to your computer, pop it in your DropBox folder, open DropBox on your device, tap the Apk, and voila!
technically its not a phone its a "Coby internet tablet" but I get what you mean, and I have actually reset it to factory default's twice with no success.
To the first poster thanks, that did work to enable to to get the file manager but what is market enabler? and any suggestions on where I can find it?
http://code.google.com/p/market-enabler/downloads/detail?name=MarketEnabler_v3.1.1.2.apk
It can fake a provider to get access.
How does it work? Every time I tried it would say "We've got a problem Houston"
Andyt95 said:
Go into your browser on the device and find an apk for a file manager, then download it. when it's downloaded you should be able to open it through the browser. Then you can copy over an apk for ME (MarketEnabler) and install it. ME will let you use the market.
Click to expand...
Click to collapse
thanks
newb here. I heard so much about appstores that I spaced clicking to download
thank you
ryladine said:
How does it work? Every time I tried it would say "We've got a problem Houston"
Click to expand...
Click to collapse
errmmm... every time I install ME it's ok...
try installing the 2.2.6 market from this child forum??
try appbrain. It should let you start a direct download from your PC.
If everything fails then the only thing I can suggest is installing all apps from .apk
Andyt95 said:
errmmm... every time I install ME it's ok...
try installing the 2.2.6 market from this child forum??
try appbrain. It should let you start a direct download from your PC.
If everything fails then the only thing I can suggest is installing all apps from .apk
Click to expand...
Click to collapse
He would need root for it to work.
If you do have root, try this http://amip.tools-for.net/wiki/android/marketaccess
It works better than MarketEnabler.
You do have WIFI enabled? And added your google account? Does it have a SIM card?
ryladine said:
How does it work? Every time I tried it would say "We've got a problem Houston"
Click to expand...
Click to collapse
Check My Posts....
Under Market-Access!!
Should Help!!
Also I Have A Post With ES Explorer,
That You Can Basically Can Download From XDA It Self!!
Good-Luck!!
Sent from my HERO200 using XDA App
Hi, Just got my TF and attempted to install flash player. However, i get a message saying it cannot be installed because of my country (Trinidad and Tobago).
Flash capability was an important feature for me, so I would like to know what can I do to overcome this problem...short of moving to another country.
You could search for flash player apk and you should be able to get it that way.
edit: I've uploaded Flash 10.1 here, the latest version is 10.3.
http://www.mediafire.com/?tmggbys8czlq5mc
Okay, sorry but I'm new to android...first day actually. I understand the concept of this. The file is the android package file for flash player. If I DL it to my TF, how do I install/setup on the device?
And also...do you recommend searching for 10.3 apk, because an initial google search gave a few results for 10.3, or should i stick with 10.1 that you posted. Thanks.
just go to where you stored it with the file manager app included and open it. Also 10.3 is better.
Okay, thanks for the quick solutions. Off to try.
One thing you will need to do before you can just install it is to go to settings>applications then put a check mark in the 'unknown sources' box. You probably wont be able to install that file unless you do. Then use the inbuilt file manager to install the apk file as seshmaru said above.
And Flash 10.3 is here:
http://mir.cr/BQ7NMAQZ
stuntdouble said:
One thing you will need to do before you can just install it is to go to settings>applications then put a check mark in the 'unknown sources' box. You probably wont be able to install that file unless you do. Then use the inbuilt file manager to install the apk file as seshmaru said above.
Click to expand...
Click to collapse
No worries, when you try to install an app from the file manager without having it enabled it tells you and asks you if you want it to redirect you to settings to allow it.
seshmaru said:
No worries, when you try to install an app from the file manager without having it enabled it tells you and asks you if you want it to redirect you to settings to allow it.
Click to expand...
Click to collapse
Cool. They've thought of everything then.
Success
Tried it and it worked. Got a message saying it was successfully installed.
Or maybe not....there isn't any icon for the flash player app and websites using flash tell me that I need flash player.
After DLing the apk file, i went to the location and opened it. It said installing, than said successfully installed. Any ideas??
Enable the plugin in the browser.
stuntdouble said:
Enable the plugin in the browser.
Click to expand...
Click to collapse
Sorry ....but...how exactly do I do that?
browser settings>advanced>enable plug-ins. Set to either always on, or on demand if you prefer to click and select the things that load.
Ok, got it to work! Nice.
But, can it work in firefox as well? Pages with flash work in the browser, but in my firefox app
Hello , i have huawei g 510android 4.1.1 512ram ,i have rooted it and i download root browser from google play then i put an usb host xml file in system folder and change the system folder perminsions to 0644 then my phone screen gone black immediately got out the battary then i rebot it and a lot of features was gone such as when i open settings wifi settings wasnt there and if open wifi from the slide bar above the screen and i coonect to my home wifi ii open chrome says no connection what is should do? Also i tried fixing perminsions from an app called rom manager but nothing change
Well, lol why'd you change the host file permissions?
You can easily fix this by flashing a ROM, it'll rewrite the permissions you,have currently with new ones.
Sent from my Nexus 5 using Tapatalk
answer
krishneelg3 said:
well, lol why'd you change the host file permissions?
You can easily fix this by flashing a rom, it'll rewrite the permissions you,have currently with new ones.
Sent from my nexus 5 using tapatalk
Click to expand...
Click to collapse
if i try to open root browser automatically close i tried two different browser app but nothing but a simple browser no root app woks
I basically took the instructions from XDA member "chronicaust" and made them simple with 1 single download link for the service files, and links to all apps needed. People were having trouble understanding the process in the original thread. So I hope this simplifies it and makes it clear for any new people. All I did was reorganize this process and hopefully make it easier for most people. The original instructions were confusing for me... I don't take credit for developing this at all!
Confirmed working on Verizon Retail Edition
DOWNLOAD THESE:
1. ES File Explorer - https://play.google.com/store/apps/details?id=com.estrongs.android.pop&hl=en
- Make sure to enable root by going to the little icon (globe with phone on it) in upper left corner > Tools > Root Explorer > On
2. Download the modified services.odex and services.jar from here: https://www.dropbox.com/s/qs6y60vb6392um2/vz_db_services_files.zip
ONCE YOU HAVE DOWNLOADED THE ABOVE:
1. Copy both modified services.odex and services.jar to your phone if you downloaded them to your computer (if you downloaded them to your phone then unzip and move to next step)
2. Copy or move the modified services.odex and services.jar to the /system folder in the root directory of the phone using ES File Explorer
3. Fix permissions on both files to rw-r-r (3 checks in first column, first check in second, rest blank)
- To fix permissions, longpress on the file and it will be checked off, then click in lower right corner: More > Properties > Change (next to permissions)
4. Copy services.JAR from the system root folder to the /system/framework folder, select overwrite.
5. Copy services.ODEX from the system root folder to the /system/framework folder, select overwrite.
6. Your phone should pause for 10-15seconds and reboot. If it doesn't reboot automatically then reboot manually.
TURNING ON DOWNLOAD BOOSTER
CREATE A SHORTCUT
1. Download AnyCut - https://play.google.com/store/apps/details?id=com.spring.bird.anycut&hl=en
2. Open the app, and choose New Shortcut > Activity
3. Scroll down a bit (screen is blank at the top) find "Download Booster"
4. This should add a shortcut icon to your Home Screen
5. Click the shortcut you just created and you can now turn on the Download Booster.
HOW TO GET THE QUICKSETTINGS TILE
1. Download SQlite Editor - https://play.google.com/store/apps/details?id=com.speedsoftware.sqleditor
2. Open SQlite and then under Apps find settings storage > settings.db > system
3. In the search box search for "notification" (without quotation marks)
4. Find the following items:
• notification_Panel_Active_App_List
• notification_panel_default_active_app_list
• notification_Panel_Active_App_List_for_Reset
5. Select on of the above items, once selected choose the pencil icon (edit)
• Add NetworkBooster; to the end of the "value" field as seen in screenshot attached.
6. Once you have completed it for all 3 items above you may exit SQlite
7. Go to Settings > Notification Panel > and press Reset
7. Reboot
TESTING DOWNLOAD BOOSTER
0. Make sure you are connected to WIFI and LTE (Does not work on regular 4G or lower)
1. Open the Play Store
2. Find the app called DCIkonZ (or any app over 30 mb)
3. Install app as normal. You should get a popup saying Download Booster enabled...
tacopimp said:
I basically took the instructions from XDA member "chronicaust" and made them simple with 1 single download link for the service files, and links to all apps needed. People were having trouble understanding the process in the original thread. So I hope this simplifies it and makes it clear for any new people. All I did was reorganize this process and hopefully make it easier for most people. The original instructions were confusing for me... I don't take credit for developing this at all!
Confirmed working on Verizon Retail Edition
DOWNLOAD THESE:
1. ES File Explorer - https://play.google.com/store/apps/details?id=com.estrongs.android.pop&hl=en
- Make sure to enable root by going to the little icon (globe with phone on it) in upper left corner > Tools > Root Explorer > On
2. Download the modified services.odex and services.jar from here: https://www.dropbox.com/s/qs6y60vb6392um2/vz_db_services_files.zip
ONCE YOU HAVE DOWNLOADED THE ABOVE:
1. Copy both modified services.odex and services.jar to your phone if you downloaded them to your computer (if you downloaded them to your phone then unzip and move to next step)
2. Copy or move the modified services.odex and services.jar to the /system root folder using ES File Explorer
3. Fix permissions on both files to rw-r-r (3 checks in first column, first check in second, rest blank)
- To fix permissions, longpress on the file and it will be checked off, then click in lower right corner: More > Properties > Change (next to permissions)
4. Copy services.JAR from the system root folder to the /system/framework folder, select overwrite.
5. Copy services.ODEX from the system root folder to the /system/framework folder, select overwrite.
6. Your phone should pause for 10-15seconds and reboot. If it doesn't reboot automatically then reboot manually.
TURNING ON DOWNLOAD BOOSTER
CREATE A SHORTCUT
1. Download AnyCut - https://play.google.com/store/apps/details?id=com.spring.bird.anycut&hl=en
2. Open the app, and choose New Shortcut > Activity
3. Scroll down a bit (screen is blank at the top) find "Download Booster"
4. This should add a shortcut icon to your Home Screen
5. Click the shortcut you just created and you can now turn on the Download Booster.
HOW TO GET THE QUICKSETTINGS TILE
1. Download SQlite Editor - https://play.google.com/store/apps/details?id=com.speedsoftware.sqleditor
2. Open SQlite and then under Apps find settings storage > settings.db > system
3. In the search box search for "notification" (without quotation marks)
4. Find the following items:
• notification_Panel_Active_App_List
• notification_panel_default_active_app_list
• notification_Panel_Active_App_List_for_Reset
5. Select on of the above items, once selected choose the pencil icon (edit)
• Add NetworkBooster; to the end of the "value" field as seen in screenshot attached.
6. Once you have completed it for all 3 items above you may exit SQlite
7. Go to Settings > Notification Panel > and press Reset
7. Reboot
TESTING DOWNLOAD BOOSTER
0. Make sure you are connected to WIFI and LTE (Does not work on regular 4G or lower)
1. Open the Play Store
2. Find the app called DCIkonZ (or any app over 30 mb)
3. Install app as normal. You should get a popup saying Download Booster enabled...
Click to expand...
Click to collapse
Thank YOU!! I couldn't figure out with the other thread, this was simple and easy to follow, just a suggestion, when you mention root system folder, it would probably make it less confusing for others if you mention that it's not the actual folder called "root" under system.
Well not sure what I did wrong. Copied over the the two files into the framework folder. The phone froze and rebooted as expected. It then said optimizing about 400 apps. After that finished it just kept saying "Unfortunately, Verizon Login has stopped.", "NFC Service", "com.android.phone", "Google search", "Pica something..." and several others in an endless loop. :/
EDIT: Downloading the stock Verizon tar... What a pitty. I cannot access anything.
smashedpumpkins said:
Well not sure what I did wrong. Copied over the the two files into the framework folder. The phone froze and rebooted as expected. It then said optimizing about 400 apps. After that finished it just kept saying "Unfortunately, Verizon Login has stopped.", "NFC Service", "com.android.phone", "Google search", "Pica something..." and several others in an endless loop. :/
EDIT: Downloading the stock Verizon tar... What a pitty. I cannot access anything.
Click to expand...
Click to collapse
Did you fix the permissions before you moved them?
Sent from my SM-G900V using Tapatalk
tacopimp said:
Did you fix the permissions before you moved them?
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
Yeah I changed the permissions for both. (Granted I ended up removing permissions?) The only thing I did that might be different from what you said is copy both files with the permissions already changed at the same time then it froze.
What's the best way/app to image my phone if I kill it again?
smashedpumpkins said:
What's the best way/app to image my phone if I kill it again?
Click to expand...
Click to collapse
I use titanium backup.
Sent from my SM-G900V using Tapatalk
I'm not sure why so many people are obsessed with enabling this feature. People like me who don't have unlimited data don't care to piss it away with "boosting" my download speeds. Plus, I don't really download anything worth needing it anyways but all the power to the rest of you
Dennisg34 said:
I'm not sure why so many people are obsessed with enabling this feature. People like me who don't have unlimited data don't care to piss it away with "boosting" my download speeds. Plus, I don't really download anything worth needing it anyways but all the power to the rest of you
Click to expand...
Click to collapse
Most everyone on this forum I'm sure still has unlimited data. I do.
Sent from my SM-G900V using XDA Free mobile app
warriorpluto said:
Most everyone on this forum I'm sure still has unlimited data. I do.
Sent from my SM-G900V using XDA Free mobile app
Click to expand...
Click to collapse
I think most people here more like, "If I can have it, I want it" not more so the fact that they NEED it, ya know?
Yea I know what your mean. It would be really useful if you can use it with any application
Sent from my SM-G900V using XDA Free mobile app
I followed the steps and after it updated apps. My Wifi Tether notification icon has changed. It shows the USB one instead of the usual radio signal icon. and when I click on the notification, it takes me to the USB and Bluetooth tether screen. Whereas before, it took me right to the WIFI Tether screen.
When I backed up the files to change them back, I realized that I backed up the wrong files.
Stupid me.
Does anyone have the stock JAR and ODEX files? I'd rather have the convenience of tether than download booster.
Thanks in advance.
iSpyder said:
I followed the steps and after it updated apps. My Wifi Tether notification icon has changed. It shows the USB one instead of the usual radio signal icon. and when I click on the notification, it takes me to the USB and Bluetooth tether screen. Whereas before, it took me right to the WIFI Tether screen.
When I backed up the files to change them back, I realized that I backed up the wrong files.
Stupid me.
Does anyone have the stock JAR and ODEX files? I'd rather have the convenience of tether than download booster.
Thanks in advance.
Click to expand...
Click to collapse
I've attached them if you still need them. They're from my Verizon S5 retail.
smashedpumpkins said:
I've attached them if you still need them. They're from my Verizon S5 retail.
Click to expand...
Click to collapse
Omg! Thank you so much. I think I should back up my phone first before I do anything else.
Also one more question, is there a setting.odex in the framework folder? I think that's what I copied.
tacopimp said:
I basically took the instructions from XDA member "chronicaust" and made them simple with 1 single download link for the service files, and links to all apps needed. People were having trouble understanding the process in the original thread. So I hope this simplifies it and makes it clear for any new people. All I did was reorganize this process and hopefully make it easier for most people. The original instructions were confusing for me... I don't take credit for developing this at all!
Confirmed working on Verizon Retail Edition
.
Click to expand...
Click to collapse
Thank you for this write-up. I turned mine on successfully!
iSpyder said:
I followed the steps and after it updated apps. My Wifi Tether notification icon has changed. It shows the USB one instead of the usual radio signal icon. and when I click on the notification, it takes me to the USB and Bluetooth tether screen. Whereas before, it took me right to the WIFI Tether screen.
When I backed up the files to change them back, I realized that I backed up the wrong files.
Stupid me.
Does anyone have the stock JAR and ODEX files? I'd rather have the convenience of tether than download booster.
Thanks in advance.
Click to expand...
Click to collapse
I experienced the same issue... BUT Mobile Hotspot still works even though I get the USB/Bluetooth screen when I click on the notification.
Sent from my SM-G900V using XDA Free mobile app
riotdog7 said:
I experienced the same issue... BUT Mobile Hotspot still works even though I get the USB/Bluetooth screen when I click on the notification.
Sent from my SM-G900V using XDA Free mobile app
Click to expand...
Click to collapse
Not sure why...
Sent from my SM-G900V using Tapatalk
tacopimp said:
I basically took the instructions from XDA member "chronicaust" and made them simple with 1 single download link for the service files, and links to all apps needed. People were having trouble understanding the process in the original thread. So I hope this simplifies it and makes it clear for any new people. All I did was reorganize this process and hopefully make it easier for most people. The original instructions were confusing for me... I don't take credit for developing this at all!
Confirmed working on Verizon Retail Edition
Click to expand...
Click to collapse
I followed all the way up to replacing services.jar and when I do replace it, it says unfortunately (a bunch of apps) has stopped. It causes me to have to do a battery pull, and when I do power it back on, it gets stuck on the Verizon logo screen. I've tried it a few times with both root explorer, efs file explorer, and both files at the same time/services.jar first. Every time I try, I have to restore my rom using safestrap. Any ideas would be appreciated.
Edit: I tried flashing the zip in the main thread and it's working so far without any hiccups.
@waleed300
Can you put a disclaimer on the OP that states that enabling this (if you have native hotspot enabled) will mess with your WiFi Hotspot toggle since it replaces the services.jar? Hotspot still works, but the running notification is incorrect. Just a thought....
---------- Post added at 08:53 AM ---------- Previous post was at 08:51 AM ----------
riotdog7 said:
I experienced the same issue... BUT Mobile Hotspot still works even though I get the USB/Bluetooth screen when I click on the notification.
Sent from my SM-G900V using XDA Free mobile app
Click to expand...
Click to collapse
If you want to fix it, you have to replace your services.jar with the stock one (this is how I fixed it with the help of Versatile1). And I had a question, when your mobile hotspot running notification was the correct one, clicking the running notification took you to the hotspot options but did long pressing the quicksetting still take you to the USB tether options? Was just wondering.
Download Booster not using LTE?
So I've had Download Booster enabled for a little while after following this post. I've noticed a couple of things:
1. When downloading large files, DB doesn't always appear and when it does appear, LTE is never used.
2. During the download, DB disappears.
I wasn't sure what the reason was for the odd behavior but was curious to see if anybody else has noticed it.
I would make a donation for a 1-click apk solution like towelroot.
Hey guy's, I hope somebody can help me out here. I can't find any explanation on internet. I want to install an apk from the local storage on my Rog phone 5 ( android 12,un rooted) .
In the old days it was pretty simple, just a slide to activate the "allow unknown sources", click on the apk file and it would install. Now on the rog phone 5 in the apps¬ifications, special app-acces, install unknown apps it only shows a few apps that I can give permissions to install from unknown sources. Like Chrome, file manager, gmail, brave browser etc. ( see picture). So I give the file manager or brave the permission,restart the phone, go to the apk in the file manager but it won't install.
It will just show the contents of the apk. If I select the apk I can remove it, rename it, compress it, anything but install it.
I can choose open with brave but still nothing happens. I tried downloading an app in the playstore to install apk files but it won't even list the apk file. I have no clue why they made something that used to be so easy so complicated. So I hope somebody can enlighten me how to install an apk on this phone. Thanks in advance!
Have you enabled install unknown apps in developers options ? Special app access allows you to allow/not allow individual apps to install unknown apk files. I think you have to enable it in developer options for the native installer first. I may be wrong but it's worth checking.
I'll go check if the option is there and let you know. Tnx man.
The only thing I found was " force app allowance on external drive" and but it changed nothing.
Piriroekoe said:
The only thing I found was " force app allowance on external drive" and but it changed nothing.
Click to expand...
Click to collapse
you could try
Code:
adb shell settings put secure install_non_market_apps 1
adb shell settings put secure unknown_sources_default_reversed 1
that would be from terminal on pc or you could install settings database editor from play store and grant it permissions via adb and you will have gui to change system settings
Could you please walk me through how to do this? Tnx.
Piriroekoe said:
Could you please walk me through how to do this? Tnx.
Click to expand...
Click to collapse
Ok, first I guess I need to ask some questions. Have you tried a different file manager, installed thru play store ? How many .apk files have you tried to install ? If it is just the one app that you have in storage it may be corrupt. Have you tried a fresh copy of it ? Is it an old app and is it compatible with your Android version ?
I don't know what I was thinking, that isn't in developer options anyway, it's in security. It would seem odd for them to remove the ability to install personal apk.