Raspberry pi 2 B not booting (solved)

[fonseca]

Hi im new on the forum but i started reading and learning a year ago. Im from Argentina and my english is poor but i understand perfectly.

The problem is this, i bought a PI 2 B yesterday and spend almost 6 hours trying to make it work. I've checked every post and peace of information about with no luck. I tried several images (raspbian, noobs, retropie, openelec) but no one seems to work.

The pi doesn't display any image and the POWER and ACT led stays on all the time. I tried several SD cards and several power supplies with no luck. In all the tests the result is the same, POWER and ACT led on all the time and no image. I'm connecting the pi via HDMI. I'm not new at this since i have a Raspberry PI 1 B and never had a problem with anything i threw it on.

Any suggestions?

Thanks very much!

David.-

[drgeoff]

If you have a micro-SD to SD adaptor use it to put one of the micro card, flashed with a recent NOOBS, into the B. Does the B boot?

[fonseca]

I forgot to mention that, the PI 1 B boots perfectly when i put the microSD cards on the addapter with any images, i've tried this with every flash i made. That's what catches my attention.

[Bananaguns]

It could be that your Pi is just dead. I think mines dead also after a bad power supply put too much power through it and now only the red and green LED turn on so my guess is that's what happened on a dead Pi. But it could also be that none of your power adapters have enough current. Ones for phones iPods etc. Are anywhere from 500-1000ma usually, but not 2000ma or 2a. If your adapters are too little current to power on the pi plus anything connected via USB then that could be the result. Try unplugging everything aside from the connection to your TV/monitor and try again. If that fails I'd say return it for a new one.

[fonseca]

The power supplies i'm using are, a motorola phone charger 700ma, a sony phone charger 800ma and a standard 2A charger for tablets. I think is dead to.

I've tried only the PI and the power supply and does the same symptom.

I use the 2A for the PI 1 B with a keyboard, mouse, xbox 360 wireless controller, usb hub, pendrive and usb controller with no problem.

[mahjongg]

Did you read the boot problem sticky?
viewtopic.php?p=437084#p437084
for booting problems it has all the answers!

PI's that arrive "dead" are very rare, as all PI's are tested in the factory.
most "dead" PI's simply do not work because there is something wrong with the SD-card (or the image on it).
PI's are protected against "too much voltage" and the chance that a "bad supply" destroys your PI are low, so don't assume that it happened.
Also, if power is bad the PWR LED will not burn at all (on a B+ or 2B ).

Read the sticky, and try another SD-Card.

[fonseca]

One of the first things i did is read the boot problem sticky and try every posibility with no luck. I understand that the "dead pi" is a very rare problem and because of that i've tried so hard to make it work. The power supplies i tested works perfectly on the PI 1 B i own, and the 2amp one is 24/7 on with the PI from 6 months or so with no problems, very stable.

I've tried 4 kingston SD cards (2 equals and 2 different) and trying to get another brand and model according to the SD card compatibility list i found on the wiki.

I will try this tomorrow and will update the post with the result.


Thanks so much for the responses and the help!

[DougieLawson]

Try getting a copy of the SDCard Assoc. formatter program (or using a camera, phone or tablet), reformat the card to blank.

Download a fresh copy of NOOBS from http://raspberrypi.org/downloads, unzip that and copy the unzipped contents to the root of the SDCard. (There's plenty of web pages & YouTube videos out there with details of how to do that.)

[drgeoff]

Try getting a copy of the SDCard Assoc. formatter program (or using a camera, phone or tablet), reformat the card to blank.

Download a fresh copy of NOOBS from http://raspberrypi.org/downloads, unzip that and copy the unzipped contents to the root of the SDCard. (There's plenty of web pages & YouTube videos out there with details of how to do that.)

Dougie, if you had read and understood what the OP already wrote at viewtopic.php?p=776001#p776001, would you still have wasted your time and ours by posting?

[fonseca]

It work!!! I'm so relief!! I buy a sandisk 16gb microSD and work exellent! That was the problem, it seems wierd for me just becouse i've tried 4 SD cards that worked well on the PI 1.

Thanks so much to all and sorry for wasting your time!!

Salutes!

David.-