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by liamkennedy
Wed Mar 06, 2019 6:36 am
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.

Imperf3kt wrote:
Wed Mar 06, 2019 6:29 am
Sorry, didn't specify.
I was asking dannyk6
I think this answers your question.
dannyk6 wrote:
Wed Mar 06, 2019 3:58 am
Nothing plugged into the GPIO. No chance of shorting the GPIO pins as the Pi's are placed in a plastic case before ever powering them up.
by liamkennedy
Wed Mar 06, 2019 5:06 am
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.

Imperf3kt wrote:
Wed Mar 06, 2019 4:36 am
Was anything ever connected to the GPIO, not just right now, but at any point in the Pi's life?
Who are you asking that question of?
by liamkennedy
Tue Mar 05, 2019 10:27 pm
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.

3v3 issue confirmed!! There is no voltage on the 3v3 pin on our dead Pi's (3b+ from Arrow). Red light is on, and there IS voltage on the 5v pin. We currently have 17 failed Pis and still have about 150 to check. I will update again once we've checked all of our in-stock Pis. Also just a note: these...
by liamkennedy
Mon Mar 04, 2019 10:53 pm
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.

I'm wondering if I'm seeing this issue as well. Similar to OP, we use Rpis in our products as well.Typically assemble 10-20 per day and have been using Pi for about 2 months now and have never had a dead pi in our 3+ year history of using Pi's. I just recently bought a new batch of 200 3b+ from Arr...
by liamkennedy
Mon Mar 04, 2019 8:12 pm
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.

So now I have a reliable way of inducing this 3V3 problem without even touching the GPIO - it has to do with which device I have plugged into the HDMI port. This is unrelated to that DOA Pi3B+. That one is totally dead and doesn't boot under any circumstance. I have the Pi's plugged into a Blackmagi...
by liamkennedy
Mon Mar 04, 2019 11:36 am
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: Batch of new Pi3B+ Not booting - 3V3 not working. Very concerned about using 3B+ now

OK, so despite the title of this post attempting to screw up our sales, lets have some figures. We have sold multiple millions of Pi3B+. If there was an inherent defect we would be clearly inundated with returns and problems. But we are not. And also note, every Pi leaving the factory works, as eac...
by liamkennedy
Sun Mar 03, 2019 10:15 am
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: Batch of new Pi3B+ Not booting - 3V3 not working. Very concerned about using 3B+ now

I recall one reported case where the user said his/her HAT worked fine on a 3b, but caused a 3b+ to lose the 3v3 supply. Further investigation turned up the fact that the HAT was at fault and the issue was also happening on the Pi3b, but nobody noticed. I cannot find the thread, but remembered it's...
by liamkennedy
Sat Mar 02, 2019 8:34 pm
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: Batch of new Pi3B+ Not booting - 3V3 not working. Very concerned about using 3B+ now

Well, you must be very unlucky, as only half a dozen of cases are known, and the rate of cases seemed to have dropped. The number of failures appears to be low, and there is a feeling that the rate is falling. However, we are still interested to swap boards directly with users, particularly those w...
by liamkennedy
Sat Mar 02, 2019 12:32 pm
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: Batch of new Pi3B+ Not booting - 3V3 not working. Very concerned about using 3B+ now

(I'm assuming you're referring to the ISS-Above, which appears to use Pimoroni's PiGlow) Yes. That's it. You mention the PiGlow... is that actually relevant to this issue (genuine question)? If I were involved with producing / selling a commercial product, I would be thinking about adding a small L...
by liamkennedy
Sat Mar 02, 2019 11:56 am
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

Re: Batch of new Pi3B+ Not booting - 3V3 not working. Very concerned about using 3B+ now

Yah, the "RPi3B+ 3.3v scare" put me off as well. While only having 3 units of RPi3B+ at the moment (been lucky so far), am putting off replacing my other RPi3Bs, as the RPi3B seems more "rock solid" and "reliable" compared to the RPi3B+. OMG... I didn't realize "it" had a "name".... the "RPi3B+ 3.3...
by liamkennedy
Sat Mar 02, 2019 10:44 am
Forum: General discussion
Topic: A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.
Replies: 27
Views: 2271

A couple of new Pi3B+ Not booting - 3V3 not working. Looking for further information/support.

TL;DR : Batch of new Pi3B+'s - 2 out of 6 of them have the "known" 3v3 problem and are DOA. EDIT: Adjusted the heading so as to not have this be such an alarming post. It turns out this is an extremely rare issue and I have just been one of the unlucky ones. DETAIL: I purchase quite a few Raspberry ...
by liamkennedy
Sat Mar 31, 2018 11:12 pm
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

You're wasting everyone's time sticking with Wheezy and Jessie. Wheezy is dead. Jessie has retired. Well. Thanks for that. You are such a charmer. In my case I have an application that is happily installed in 2500+ locations worldwide (which is auto updated whenever I make code changes) Forgive me ...
by liamkennedy
Sat Mar 31, 2018 10:28 pm
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

Yup. My code has to work across wheezy through to stretch and this oddity with the 2018-03-13 image and how wpa_cli works caught me by surprise too. Luckily the fix is easy to implement and is backwards compatible with older releases of raspbian.
by liamkennedy
Sat Mar 31, 2018 12:24 am
Forum: Troubleshooting
Topic: Pi3 B+ and official 7" touchscreen not working
Replies: 2
Views: 871

Re: Pi3 B+ and official 7" touchscreen not working

Hmm... I'm going to have to test this out. My application specifically uses the Lite version (no need for gui/desktop) and boots in to my application right away. I hope I don't have to maintain two image files - just to support the touchscreen. I guess I'll find out.
by liamkennedy
Fri Mar 23, 2018 5:08 am
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

Yup, but those lines are there for a reason. Or do you think the Raspbian developers just added them because they thought they looked pretty? If the seemingly superfluous lines aren't being used now, then they have plans for them later. This is how the whole mess from Jessie to Stretch happened, an...
by liamkennedy
Fri Mar 23, 2018 5:06 am
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

Go and Google "FTFY". Yes..Thank you for pointing that out. AND.. I don't think you read my reply fully. Did you verify with 100% certainty that you MUST put the country= line when you use Stretch in anything other than the 3+ (as per the release notes from the foundation)? You specifically indicat...
by liamkennedy
Fri Mar 23, 2018 4:49 am
Forum: General discussion
Topic: When will Raspberry Foundation admit that the Pi destroys your SD cards?
Replies: 88
Views: 14171

Re: When will Raspberry Foundation admit that the Pi destroys your SD cards?

Another 2,500+ data points to help put this "suggested" issue at rest. My application is now running in 2,500+ devices worldwide (most are left running 24/7).. the cases where SD cards have become corrupt is VERY VERY low. I have some customers who are still running the same SD card from April 2014....
by liamkennedy
Wed Mar 21, 2018 11:21 pm
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

UPDATE : SOLVED. on the 3+ 2018-03-13 Stretch or NOOBS 2.7 versions YOU MUST configure the country= setting FTFY, you're welcome. There was a sudo apt update; sudo apt -y dist upgrade on the latest Raspbian that added a new rfkill process. Just want to be clear.. that's NOT my quote. You edited it ...
by liamkennedy
Wed Mar 21, 2018 10:53 pm
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

I don't know why people are always trying to cut corners with the wpa_supplicant.conf file. If you use a properly configured wpa_supplicant.conf, it just works. The procedure I outlined in my reply back in November works on the new 3B+, it works on the Pi Zero W and 3B, and it works on all other mo...
by liamkennedy
Wed Mar 21, 2018 3:14 pm
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

No need to overomplicate it. Just insert country=GB (or your appropriate country code) into your wpa_supplicant.conf. If you place it on the boot partition before booting, you won't have to run rfkill unblock. If you've already booted and then manually edited wpa_supplicant.conf, you'll need to run...
by liamkennedy
Tue Mar 20, 2018 11:59 pm
Forum: Beginners
Topic: Use Wifi in latest raspbian lite stretch in headless mode
Replies: 72
Views: 29187

Re: Use Wifi in latest raspbian lite stretch in headless mode

UPDATE : SOLVED. on the 3+ only YOU MUST configure the country= setting As per the release notes for the 2018-03-13 image states: 2018-03-13: * Raspberry Pi 3 B+ support * WiFi is disabled until wireless regulatory domain is set (Pi 3 B+ only) - The domain can be done through 'Raspberry Pi Configur...
by liamkennedy
Tue Aug 08, 2017 11:50 pm
Forum: Troubleshooting
Topic: Date Time remains in UTC despite being configure for Local Zone
Replies: 17
Views: 5841

Re: Date Time remains in UTC despite being configure for Local Zone

In the current Jessie kernel, /etc/localtime is a copy of the appropriate time zone file from /usr/share/zoneinfo/, not a symlink to the /usr/share/zoneinfo directory. It's possible something in the time zone handling has changed between your 4.4 kernel and the current version, but you could try th...
by liamkennedy
Tue Aug 08, 2017 11:45 pm
Forum: Troubleshooting
Topic: Date Time remains in UTC despite being configure for Local Zone
Replies: 17
Views: 5841

Re: Date Time remains in UTC despite being configure for Local Zone

Okay, interesting. In the current Jessie kernel, /etc/localtime is a copy of the appropriate time zone file from /usr/share/zoneinfo/, not a symlink to the /usr/share/zoneinfo directory. It's possible something in the time zone handling has changed between your 4.4 kernel and the current version, b...
by liamkennedy
Tue Aug 08, 2017 10:31 pm
Forum: Troubleshooting
Topic: Date Time remains in UTC despite being configure for Local Zone
Replies: 17
Views: 5841

Re: Date Time remains in UTC despite being configure for Local Zone

Check that the /etc/localtime file is the right one (Los Angeles in your case) [email protected]:~ $ md5sum /etc/localtime 9323ff44ce205ce1a1bad7e2dca39939 /etc/localtime [email protected]:~ $ md5sum /usr/share/zoneinfo/America/Los_Angeles 9323ff44ce205ce1a1bad7e2dca39939 /usr/share/zoneinfo/America/Los_Ange...
by liamkennedy
Tue Aug 08, 2017 9:49 pm
Forum: Troubleshooting
Topic: Date Time remains in UTC despite being configure for Local Zone
Replies: 17
Views: 5841

Re: Date Time remains in UTC despite being configure for Local Zone

What does an export command show? I suspect there's a TZ variable in there somehow. Alas nothing to do with TZ there [email protected]:~/issabove $ export declare -x DISPLAY="localhost:10.0" declare -x HOME="/home/pi" declare -x LANG="en_GB.UTF-8" declare -x LOGNAME="pi" declare -x LS_COLORS="rs=0:di=01;...

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