TD-er
commented
2 years ago Another way to know you're not dealing with a real one is trying to send data to it. A number of units I've seen did not accept anything from the serial port.
Open orimate opened 2 years ago
TD-er
commented
2 years ago Another way to know you're not dealing with a real one is trying to send data to it. A number of units I've seen did not accept anything from the serial port.
mikalhart
commented
2 years ago Thank you for sharing. I do like those modules you've photographed. Is there are particular vendor we should steer clear of?
orimate
commented
2 years ago They were bought from ebay from different sellers. I contacted with one of them, they don't know how can be happened. (Not chinese seller, of course they are saying we don't know) The seller said also this chip is one of the charge what are arrived on the last week. We have two problems. The first one is the chip can be completely chinese or the second one which is my case the chip is probably genuine but a relabeled old one. They are not able to set your configuration. Basically ebay or aliexpress or something like this portals are not safe. I have no idea where could I get a good one? I guess the problem is not new one. I found an article from the vendor from 2019 how the user can prove that chips are good or not. Here are a couple of discussions on this topic.
I hope that it helps.
TD-er
commented
2 years ago Not only the modules can be counterfeit, but also the ceramic antennas. Some of the "fake" modules are actually working fine. They are not uBlox, you may not be able to even set the baud rate etc., but they work just fine. But I do have a bag full of ceramic antennas, the bigger ones, which are just fake. The small ceramic ones (rectangular ones) do work fine (not great sensitivity), but the 25x25mm ones I have here do not allow to get a single fix. Not even possible to get valid time.
hpsaturn
commented
1 year ago I found another fuck seller that sell fake or refurbish modules:
I don't tested it before make my design. A big mistake for my side.
Please test first your modules with a FTDI or whatever before used those
https://user-images.githubusercontent.com/423856/194248202-90b7ac32-504d-4d64-9a1f-ff718850c04f.mp4
Hi,
this not an issue it can be closed instantly. I wanted to share the result of my experince. After I spent 2 days of my life to get work the modules, I landed in a forum where I read that there is a lot of fakes on the markt. I read out the hardware version and as you can see it was UBX G5-xxx. After that I checked the label on the chip and I pulled it down and it is really an relabelled version of 5 modul. What can I say? I write the post because if you read this and I can save time for you, than it worth it.