PMB9955

The PMB9955 is the baseband chip used in the iPad Pro (11-inch), iPad Pro (12.9-inch) (3rd generation), iPad Air (3rd generation), iPad mini (5th generation), iPhone XR, iPhone XS and iPhone XS Max. It is responsible for transmitting simultaneous voice and data transfer on LTE (provided the carrier has the infrastructure to allow simultaneous voice and data transfer.)

Known Firmware Versions

iPad Pro (11-inch), iPad Pro (12.9-inch) (3rd generation), iPad Air (3rd generation), iPad mini (5th generation), iPhone XR, iPhone XS and iPhone XS Max

1.00.07     12.0          (Build 16A366)
1.00.08     12.0.1        (Build 16A405)
1.01.12     12.1 beta     (Build 16B5059d)
1.01.20-1   12.1 beta 2   (Build 16B5068i)
1.01.27     12.1 beta 3   (Build 16B5077c)
1.01.29     12.1 beta 4   (Build 16B5084a)
1.01.30     12.1 beta 5   (Build 16B5089b)
            12.1          (Build 16B92, 16B93 & 16B94)
1.02.09     12.1.1 beta   (Build 16C5036c)
1.02.16     12.1.1 beta 2 (Build 16C5043b)
1.02.18     12.1.1 beta 3 (Build 16C5050a)
            12.1.1        (Build 16C50)
1.03.02     12.1.2 beta   (Build 16D5024a)
1.02.18     12.1.2        (Build 16C101 & 16C104)
1.03.05     12.1.3 beta 2 (Build 16D5032a)
1.03.07     12.1.3 beta 3 (Build 16D5037a)
1.03.08     12.1.3 beta 4 (Build 16D5039a)
            12.1.3        (Build 16D40)
            12.1.4        (Build 16D57)
1.04.10     12.2 beta     (Build 16E5181f)
1.04.13     12.2 beta     (Build 16E5191d)
1.04.21-2   12.2 beta 3   (Build 16E5201e)
1.04.28     12.2 beta 4   (Build 16E5212f)
1.04.30     12.2 beta 5   (Build 16E5223a)
            12.2 beta 6   (Build 16E5227a)
            12.2          (Build 16E227)
1.05.00     12.3 beta     (Build 16F5117h)
1.05.01     12.3 beta 2   (Build 16F5129d)
1.05.02     12.3 beta 3   (Build 16F5139e)
1.05.03     12.3 beta 4   (Build 16F5148a)
            12.3 beta 5   (Build 16F5155a)
            12.3 beta 6   (Build 16F5156a)
            12.3          (Build 16F156)
1.05.04     12.3.1        (Build 16F203)
1.06.01     12.4 beta     (Build 16G5027g)
            12.4 beta 2   (Build 16G5027i)
1.06.02     12.4 beta 3   (Build 16G5038d)

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