Don’t forget to save your SHSH blobs for the current firmware for further usage. Look for an app in the list that is running on port 80 and stop it. So, what you can do right now is download the latest firmware and restore using shift + restore method. Here are the steps: Windows: Click on Start>Run. That is why either save ECID SHSH blobs using TinyUmbrella or save ECID SHSH blobs with Cydia is a must. What if you do not have any ECID SHSH blobs saved? There is no way to get ECID SHSH Blobs for older firmware when Apple has released new iOS.
Further reading: How-to Downgrade iPhone Firmware using TinyUmbrella Start TSS server if you have SHSH saved on local computer.Further reading: How-to Downgrade iPhone Firmware using Cydia Click the appropriate link below for instructions on how to accomplish this for your operating system. Edit your hosts file if you have SHSH saved on Cydia. Completely remove iTunes and Apple Mobile Device support and then reinstall iTunes.The response is “ This device isn’t eligible for the requested build.”, it means that you are restoring firmware version which is older than the current release ( i.e.: restore iOS 4.2.1 when apple has release iOS 4.3).įix 3194 Unknown Error by following these steps: It happens due to failure on verification process while restoring iPhone firmware through iTunes. : AMRAuthInstallGetLocalizedStringForServerError: no cached text for tss error code 3194 : AMDFUModeDeviceCopyAuthInstallPreflightOptions: failed to personalize bundle : failed to personalize the restore bundle: This device isn’t eligible for the requested build. : amai: AMAuthInstallBundlePersonalizePartial: server request error: This device isn’t eligible for the requested build. : amai: AMAuthInstallRequestSendSync: failed tss submission: This device isn’t eligible for the requested build. : amai: kAMAuthInstallRequestCacheLocalizedTssError: cached server error text: (3194) This device isn’t eligible for the requested build. : amai: tss_submit_job: error from server=94 (This device isn’t eligible for the requested build.) : amai: tss_submit_job: HttpQueryInfo returned 200
: amai: AMAuthInstallDebugWriteObject: debug object written: C:UsersUSERID~ : unable to get manufacturer string index: 2001 : _AMRUSBDeviceGetManufacturerStringIndex: unable to get device descriptor: 2001 : AppleDevice::GetDeviceID: failed for iBoot : iTunes: Software payload version: 8C148 (option key) This is the complete log information from %AppData%RoamingApple ComputeriTunesiPhone Updater Logs The iPhone “iPhone” could not be restored. iTunes will not let you restore the device using any older firmware than current release unless you have ECID SHSH Blobs enable. How-to Fix An Unknown Error 3194 while restoring (or downgrading) iPhone firmware.
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