3 ms·
I wonder how a recall would work, anyone know if this can be fixed by software update?
by bunnyfoofoo 3y ago
I wonder how a recall would work, anyone know if this can be fixed by software update?
- londons_explore 3y agoThis can be fixed in software. They'll have to deploy a baseband update that reduces the maximum transmit power. The user-visible effect will probably be a reduction in upload speeds (by about 30% in most cases).
- pjc50 3y agoUpload speed is not a linear function of TX power?
- londons_explore 3y agoVery roughly, yes it is. 1-(4/5.74) = 30.3% It is possible however that this SAR violation only applies to certain bands or that the cell tower already is requesting a lower transmit power. Therefore there is a good chance users don't see much impact.
- yuppiepuppie 3y agoAs someone who bought a 1k+$ phone from Apple i would be pissed if they dropped upload speed by that much. Surely there has to be an SLA that they have to uphold. No?
- pjc50 3y agoThey can't guarantee anything at all, and data link speeds are at best the responsibility of your carrier.
- layer8 3y ago> Surely there has to be an SLA that they have to uphold. What makes you think that?
- londons_explore 3y agoIn a way, you have had an unfairly high upload speed for the last 3 years, while every other phone manufacturer has been sticking to the rules and therefore sees lower speeds.
- pjc50 3y ago?? where are you getting that equation from ?? Linked to SNR, maybe, but that's not the same thing as max TX power unless you're standing right at the edge of the cell.
- jesprenj 3y agoNot parent, just asking the same question. https://en.wikipedia.org/wiki/Shannon%E2%80%93Hartley_theorem https://en.wikipedia.org/wiki/Shannon%E2%80%93Hartley_theore... There's a log here, so it doesn't even seem linear to SNR. Would SNR increase linearly to TX power? I don't know.