Apple iPad 3/4 Cellular/3G/4G Main Logic Board/Motherboard Flex (821-1409-B)

The 821-1409-B Cellular/3G/4G module flex is often damaged during logic board removal, for example during housing or battery replacement.

Failure of this flex generally results in symptoms such as:

• Reboot every few minutes (due to lack of thermal data)
• Error -1 during restore
• No IMEI / No Modem Firmware

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Compatibility

The 821-1409-B Cellular/3G/4G can be used in the following devices:

Apple iPad

• iPad 3 (Cellular)
• iPad 4 (Cellular)

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