Question about Huawei Cell Phones
Phone boots straight to yellow triangle with image signature verify fail take battery out to power down cant get into my recovery can the phone be fixed
Posted by Anonymous on
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Posted on Jan 02, 2017
The power supply fan runs from either 5V or 12 so that only tells you that the voltage for fan operation is present.
If you don't have a multimeter already, I would highly advise that you buy one. They are available for <$20 US at auto parts stores and electronic outlets. If you have one, remove the couple of screws that hold on the side panel that will let you access the guts. For an initial check, turn the power off and if your cables are long enough, don't bother to disconnect anything since changing the load on the supply might make it appear OK again. Turn it back on once you have it in position and are not moving it anymore.
Locate the main connector from PS to the mother board, insert the negative probe into any connector hole with a black wire.
All supplies will have 5V, +-12V (these are the primary voltages used by many devices) and you will find (probably) -5 and some that seem stable but undefined which are used for monitoring supply health.
Many supplies have the voltages listed on a label which often will tell you the orientation (location) of the various voltages.
I think you have a supply dying but you need to measure its outputs before assuming I'm right - been wrong before.
While you have the case open, but power off, clean out the dust bunnies you'll find using a clean paintbrush that has been dampened and made nearly dry again or buy a 'can of air' to blow them out. I recommend against vacuuming due to the horrendous static charge they can build and this is death to most semiconductors.
If you have established that the supply is failed or failing, you can buy a new one (don't repair) for about 20% of the cost of the parts inside - yeah, it's nuts. Your system will probably use the ATX form factor (so it fits mechanically) and any of these will have the basic connectors but examine the pictures and compare them to yours to be sure that some non-standard connectors your system might have are present on the new one. If your supply says 350 watts, add another 50 or 100 watts to the replacement; it won't cost much more but will let the supply run with less stress.
If you feel the need, you might want to label stuff before you disconnect things if you haven't done it before but the connectors are made so you can't screw up without trying real hard.
Posted on Nov 29, 2008
got to have a new cd-rom drive mate, most practical approach.
other options are network boot (done in offices with many computers), USB boot (if your BIOS supports it & you need to have a USB device with the bootable image of the system disk), etc.
Posted on Jan 26, 2009
SOURCE: not working
Hmmm could be a software issue but if it was working one minute then not working the next... not sure sorry I don't know more on that one. but here is the link to Samsung Mobile Tech
Maybe they can help. ATT always wants to sell you a new phone.... it gets annoying.
Posted on Mar 26, 2009
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