Edit: Chargers do not come with the RPi (any model) but may be included as a package by the vendor. There is an official RPi supply sold separately. BTW, there is a big difference between a "charger" and a "power supply" that may effect the ability to maintain sufficient voltage to complete booting.wh7qq wrote: ↑Fri Aug 16, 2019 3:46 amFor such a big urgent issue, you tell us so little: What model RPi..."B+" is rather non-specific and could apply to a variety of models? What size/make/model of uSD card and purchased how? Where were they purchased? How did you burn the images to the uSD card? How did you download and did you check sha256sum of your download .zip file to be sure it is complete.
It sounds like a "boot-up" problem that may have resulted from a bad uSD card or a bad burn (but you do not give enough detail to do anything but speculate). Download a free copy of "Etcher " and burn a fresh "Raspbian_latest" image download from this web site (see above). Get a fresh uSD card from a reputable dealer (Amazon, Micro-Center, etc.) with greater than 8Gb capacity and Class 10 or better speed. SanDisk or Samsung are suggested.
It is possible you have a bad RPi...but it is highly unlikely, especially if all 50 exhibit the same failure.
Basicly i bought 50 rasberry pis b+ for the school students to learn programming , then on testing them out , i get this error
Actually seven posts, but they were all the same problem in different words.
Nope. The spiders (like Nightshade* in my userpic) belong to my wife/
There are some who will make "test postings" just to see what the response is, to determine how well they will be served later. Others will read posts and judge the same way.
Had he said where he was, enabling the location in the ID block is a good start, and it had turned out he was near where I live, and especially if he was in the district or even at the school my grandson will be going to starting next week, I might very well have volunteered to drop by to see what I could do to help. I really do want to see the use of Pis spread in schools. But without such basic information, there's not much one can do.Andyroo wrote: ↑Sat Aug 17, 2019 10:30 am6. He looked at the comments and decided he had no hope of getting help here.
I can understand multiple posts in different sections if folk do not know about the ‘new post’ or ‘unanswered posts’ selector. Only hope he either comes back or gets it sorted fir sake of his students...