Android Build.SERIAL-是十六进制吗？

Question

Android offers the hardware serial number as an option for identifying the device (guaranteed if there is no TelephonyManager DeviceID). The documentation says:

public static final String SERIAL

Added in API level 9
A hardware serial number, if available. Alphanumeric only, case-insensitive.

All the ones I've seen are hex, as in no alphabetic chars above 'F'. Is this guaranteed?

Answer 1

No, it's not. The documentation doesn't say that it is, and it seems that HTC has Zs in their serial numbers .

The new format will read similar to HT[year][month][day]. I presume that they wish to be this precise for warranty purposes.

The month format shall be between 1 - 12, but the day format will take a slightly different shape.

Days will go from 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T, V, W, X, Y, Z. Day Z represents day 31.