# DTTG 1.5.5 won't work

**URL:** <https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305>\
**Category:** Tips\
**Created:** [February 11, 2015, 5:33pm UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305 "2015-02-11T17:33:58Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![martha0z](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/martha0z/32/87_2.png) [@martha0z](https://discourse.devontechnologies.com/u/martha0z)\
**Post date:** [February 11, 2015, 5:33pm UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/1 "2015-02-11T17:33:58Z")

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I just installed the latest update of Devonthink to go (1.5.5) on my iPad Air running 8.1.3. It crashes every time I tap on the icon to launch it. The screen goes white and then the home screen reappears.

I removed it from the iPad and reinstalled and was able to launch it. Of course, I lost everything I’d been syncing and had to reset. But it wouldn’t synchronize. I closed the app and tried to relaunch but can’t. Every time I tap the icon to launch, the same thing happens as described above.

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [February 11, 2015, 6:00pm UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/2 "2015-02-11T18:00:22Z")

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Have you rebooted your mobile device?

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**Author:** ![Basil\_Fawlty](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/basil_fawlty/32/35880_2.png) [@Basil\_Fawlty](https://discourse.devontechnologies.com/u/Basil_Fawlty)\
**Post date:** [February 12, 2015, 2:19am UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/3 "2015-02-12T02:19:40Z")

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I had exactly the same problem on my iPad AIR (but not on the iPhone 5s).

I did a restart (not reset) and it worked perfect after that.

How to restart  
Press and hold the Sleep/Wake button until the red slider appears.  
Drag the slider to turn your device completely off.  
After the device turns off, press and hold the Sleep/Wake button again until you see the Apple logo.

Good luck!

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**Author:** ![martha0z](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/martha0z/32/87_2.png) [@martha0z](https://discourse.devontechnologies.com/u/martha0z)\
**Post date:** [February 12, 2015, 1:18pm UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/4 "2015-02-12T13:18:13Z")

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> [@BLUEFROG](#):
>
> Have you rebooted your mobile device?

Yes, I just did it. Same results as yesterday.

I still had the app installed so I removed it, rebooted the ipad, reinstalled the app and tried again. Same sequence of events as reported yesterday.

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [February 12, 2015, 5:11pm UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/5 "2015-02-12T17:11:07Z")

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Please start a [Support Ticket](http://helpdesk.devontechnologies.com). Thank you.

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**Author:** ![sixbillships](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/s/9f8e36/32.png) [@sixbillships](https://discourse.devontechnologies.com/u/sixbillships)\
**Post date:** [February 20, 2015, 8:18pm UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/6 "2015-02-20T20:18:13Z")

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FWIW, I just submitted a ticket for the same exact problem on an iPad Mini running iOS 8.1.3.

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**Author:** ![eboehnisch](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/eboehnisch/32/38699_2.png) [@eboehnisch](https://discourse.devontechnologies.com/u/eboehnisch)\
**Post date:** [February 23, 2015, 8:04am UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/7 "2015-02-23T08:04:41Z")

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We have submitted a build that hopefully fixes this issue over a week ago to Apple. Unfortunately it’s not even “in review” by now. We hope that Apple will review and release our update sooner than later.

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**Author:** ![system](https://devontech-discourse.s3.dualstack.us-east-1.amazonaws.com/uploads/original/2X/4/4e6ff70c96be2eb307a274d890bba8d71ba671b3.png) [@system](https://discourse.devontechnologies.com/u/system)\
**Post date:** [January 21, 2022, 11:41am UTC](https://discourse.devontechnologies.com/t/dttg-1-5-5-wont-work/18305/8 "2022-01-21T11:41:10Z")

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