Apple has temporarily halted pushing iOS 9.3 updates to older devices after users reported their devices had become unusable after downloading the update.
Apple announced on Thursday that it is aware of the issue and has temporarily suspended downloads for older models until a fix can be found.
According to a company support page, Apple said that the affected devices could crash during the activation process if users are unable to remember the password for their Apple ID.
The devices that have been affected by the glitch are the iPad 2, iPad Air, third and fourth generation Retina iPads and iPhones 4S, 5, 5C and 5S.
Some reports have also claimed that the iPad Mini, Mini 2 and Mini 3 are also affected, along with the fifth generation of the iPod Touch, although Apple is yet to confirm if this is true.
In a statement released to iMore, Apple said it believes the issue is to do with password authorisation. While Apple is trying to work on a fix, users are advised to try and reset their passwords or connect the device to a computer and try and update via iTunes.
“Updating some iOS devices (iPhone 5s and earlier and iPad Air and earlier) to iOS 9.3 can require entering the Apple ID and password used to set up the device in order to complete the software update,”Apple said in a statement.
“In some cases, if customers do not recall their password, their device will remain in an inactivated state until they can recover or reset their password. For these older devices, we have temporarily pulled back the update and will release an updated version of iOS 9.3 in the next few days that does not require this step.”
As well as releasing a statement, Apple setup a support page which offers users possible workarounds to the problem.
UPDATE: – Apple has said that it has begun successfully pushed out iOS 9.3, build 13E236, for iPad 2 models, although the other devices listed are still believed to be affected.