My phone, a Galaxy S4 (GT-I9505), displays a black screen showing the date and time and the number of missed calls and messages in white at the top. Nothing I do will let me get out of this screen unless I receive a call in which case I can answer it but not do anything else. I first tried a reset by removing the battery and when that failed I did a factory reset. I know the reset worked because the missed calls and message count vanished. The phone is under guarantee and I have returned it for repair at my provider (Telstra) twice. Each time they say the "Handset passed full script test and has been reflashed to the current software version". On the first occasion it lasted a couple of days before the fault recurred. Today it recurred in a couple of hours. I can't see how the fault could be related to software I have installed because a factory reset would remove it. I can't imagine what hardware fault might cause the problem. I desperately need a theory, any theory, because otherwise I will spend the rest of my life in a Telstra shop.

That sounds like 'Ultra power saving mode'. Try Settings -> Power saving -> Ultra power saving mode = off Theo

Any ideas to diagnose my mobile phone?

Feb 28, 2015 21 Replies

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tlvp 11 years ago

Seems it took a while, but all's well that ends well, eh? Cheers, -- tlvp

Avant de repondre, jeter la poubelle, SVP.

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~misfit~ 11 years ago

It's laziness. Each group is a different entity with different mores. IMO if you want advice from several groups then post to them seperately.

Shaun. "Humans will have advanced a long, long, way when religious belief has a cozy little classification in the DSM." David Melville (in r.a.s.f1)

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