SoftBank phones are much more varied than Docomo phones. Unlike Docomo, it appears that SoftBank allowed manufacturers to use whatever firmware and repair methods they wanted. This creates a situation where each manufacturer needs a different tool. On the other hand, some of the tools used for international versions of these phones are cross-compatible with their Japanese counterparts.
Information on specific manufacturers:
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Motorola (MO): Works like other Motorola phones released internationally.
NEC (N): Mostly work like the
Docomo versions, but a few phone models used a Sony CPU, as well as a completely unique proprietary connector.
Nokia (NK): Works like other Nokia phones released internationally.
Panasonic (P): About half of these phone work like the
Docomo versions. The other half run on the APOXI operating system, which was used in Panasonic's international phone releases such as the VS3.
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Sharp (SH): COMPLETELY different from the
Sharp counterparts. These phones run on a Sony Ericsson CPU.
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