altstoreio / altstoreio/AltStore
iPadOS 26.2 Unable to install Altstore
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- Dominant language
- Swift
- Stars
- 14.4k
- Forks
- 1.5k
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Description
NSCocoaErrorDomain 3840
Debug Description
Encountered unknown tag html on line 1
Error Description
AltServer could not sign in with your Apple ID. The data is not in the correct format.
Failure
AltServer could not sign in with your Apple ID.
Failure Reason
The data is not in the correct format.
Title
AltStore could not be installed onto Mike哥哥的iPad.
kCFPropertyListOldStyleParsingError
Error Domain=NSCocoaErrorDomain Code=3840 "Malformed data byte group at line 1; invalid hex" UserInfo={NSDebugDescription=Malformed data byte group at line 1; invalid hex}
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the AltStore installation failure on iPadOS 26.2 using the reported Apple ID sign-in flow, then trace the NSCocoaErrorDomain 3840 and malformed-data messages. Done means identifying the source of the invalid response format and confirming that AltStore can be installed successfully.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ios, swift
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100