[BUG] File Signature invalid / Either not a Keypass database or file corrupted.

[gregui-psg]

Checks

• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

Hello,
I have been using Keypass and Keypass2Android for 10 years+ on the following configuration :

• distant database stored on a server
• access via local or internet with Windows
• access via local or internet with android Keypass2Android

My ISP changed my static IP address, so I couldn't connect to the distant database for a while and was working on the local copy in the phone
When I discovered the static IP change :

• I mapped the reverse DNS to that address,

• I exported the local up to date database copy of my phone to the server at home

• I can successfully access it remotely with my Keypass2 Windows app

• I cannot access it with my phone that says "file signature invalid " (not a Keypass database or file corrupted).

This Looks pretty similar to this recent post on Keypass Github :
#3225
They say a bug in certain phones (Google Pixel in that case, but I run a Samsung S10e) alter the jpg files used in/as the keyfile, making the phone unable to decrypt the database.
The thing is that
1/ I only use password with no keyfile and
2/ I used to be able to decrypt it for years, and as my phone is old, there has been no OS update lately.

Any hint, please, this is annoying ?

P.S. I tried to recreate new empty databases : same, and I tried to revert to previous Keypass2android V1.14r1 instead of V1.14-Rr4, with no luck

Describe what you expected to happen:

I would expect the database to open after I enter the password

What version of Keepass2Android are you using?

V1.14r4 (tried to revert to r1 also, with no luck

Which version of Android are you on?

android 12

[VinVel]

Now that is new. Have you tried clearing cache or resetting the Keepass2Android App? (Even if it doesn't do much, it's worth a try, I guess). If I understand correctly, you created a new database but you couldn't even open that one on your phone? That seems strange.

[gregui-psg]

Thanks for your answer on a sunday ;-) Le 26 avril 2026 16:18:43 VinVel ***@***.***> a écrit :

VinVel left a comment (PhilippC/keepass2android#3226) Now that is new. Have you tried clearing cache or resetting the Keepass2Android App? (Even if it doesn't do much, it's worth a try, I guess).

I cleared the cache right now. But I had uninstalled, rolled back to 14-r1 build, tried, updated again, tried again : no luck. ...

If I understand correctly, you created a new database but you couldn't even open that one on your phone? That seems strange.

... The weirdest : I created a new database from the phone and saved it to the remote location on my server. Then I could open it on windows with Keypass, accessing remotely to the server. But not opening it again on the phone 😳 !>—

…

Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS and Android. Download it today! You are receiving this because you authored the thread.

[WebworkrNet]

See also The file signature invalid #3040