ERROR: TSS request failed (status=94, message=This device isn't eligible for the requested build.)

[DaBlincx]

I'm trying to "update" an iPhone 12 currently on 18.1 to 18.1 because it is boot-looping. iTunes just gave some error 2003 so I tried idevicerestore. It fails with this error:

Request URL set to https://gs.apple.com/TSS/controller?action=2
TSS server returned: STATUS=94&MESSAGE=This device isn't eligible for the requested build.
ERROR: TSS request failed (status=94, message=This device isn't eligible for the requested build.)
Sending TSS request attempt 1... ERROR: Unable to send TSS request
ERROR: Unable to get SHSH blobs for this device

This also happens if I manually specify the shsh blob for 18.1 which i saved using blobsaver.

I read in issue #615 that there was an issue with libtatsu and it has been fixed in 1.0.3, but I'm using 1.0.4 and it's still broken.

[E3lleyyaa]

I have the same with Iphone 13 pro.
has been used the latest lib versions.

IPSW Product Version: 18.1.1
IPSW Product Build: 22B91 Major: 22
Device supports Image4: false
Variant: Customer Upgrade Install (IPSW)
This restore will update the device without erasing user data.
progress: 1 0.000000
Checking IPSW for required components...

[2024-11-28 15:27:03.127] [info] Message: All required components found in IPSW

[2024-11-28 15:27:03.128] [info] Message: progress: 1 0.200000
Getting ApNonce failed
NOTE: Unable to get nonce from device
Trying to fetch new SHSH blob
Getting SepNonce failed

[E3lleyyaa]

@nikias

[dmmc12]

$ pkg-config --modversion libtatsu-1.0
1.0.4-8-g7e1647b

+1 to @DaBlincx message ^

$ idevicerestore -l
Found device in Recovery mode
Identified device as d321ap, iPhone11,2
The following firmwares are currently being signed for iPhone11,2:
  [1] 18.2 (build 22C152)
Select the firmware you want to restore: 1
Selected firmware 18.2 (build 22C152)
Downloading firmware (https://updates.cdn-apple.com/2024FallFCS/fullrestores/072-42099/B947F49A-70F5-4388-8D5E-2472A1733D15/iPhone11,2,iPhone11,4,iPhone11,6_18.2_22C152_Restore.ipsw)

downloading: 99%

Verifying 'iPhone11,2,iPhone11,4,iPhone11,6_18.2_22C152_Restore.ipsw'...
Checksum matches.
Extracting BuildManifest from IPSW
Product Version: 18.2
Product Build: 22C152 Major: 22
INFO: device serial number is [REDACTED]
Device supports Image4: true
Variant: Customer Upgrade Install (IPSW)
This restore will update your device without erasing user data.
Checking IPSW for required components...
All required components found in IPSW
Extracting filesystem from IPSW: 092-10261-200.dmg.aea
[==================================================] 100.0%
Found ECID [REDACTED]
Getting ApNonce in recovery mode... [REDACTED]
Trying to fetch new SHSH blob
Getting SepNonce in recovery mode... [REDACTED]
Request URL set to https://gs.apple.com/TSS/controller?action=2
TSS server returned: STATUS=94&MESSAGE=This device isn't eligible for the requested build.
ERROR: TSS request failed (status=94, message=This device isn't eligible for the requested build.)
Sending TSS request attempt 1... ERROR: Unable to send TSS request
ERROR: Unable to get SHSH blobs for this device

[nikias]

Are you using the latest build of idevicerestore? The first line it prints is the version of idevicerestore, followed by the version of libirecovery and libtatsu. If it doesn't print it it suggests that it's an older version