Sellers reported selling FAKE DSO138 kits

Sellers reported selling FAKE DSO138 kits

Postby jye1 » Wed Jun 17, 2015 9:17 am

The following sellers are reported selling fake DSO138 kits. The kits they sell are pirate copies of the DSO138 kit without a single change. They copied PCB, firmware, and manual. They do not take any responsibility of the products they sell. It is encouraged that buyers stay away from these sellers.

eBay Sellers:

- t-happy
- trade_spotting
- anderlink
- ttmallzone365
- tomtop_auction
- tomtop_shop
- domecool
- tykb-buy
- tianlo_go
- victoryduanshop
- custom-sign
- finetech007
- roboticreep
- chivazhu
- rcshop2011
- bruce-shark
- worldchips
- sensecore
- good-module

AliExpress Sellers:

- Wireless module Fans
- excellbay
- dependonu
- Shenzhen huaqiang electronic co. LTD
- nogap4us
- First Love 123
- beyond your imagination
- aseasylife
- QualityEx
- LiteTeck
- DealPark
- Magic sky
- T-Best Wholesales Outlet
- Hakuna Matata ^_^
- NewConcept
- Shops No. 1
- Shenzhen Tomtop Technology Co., Ltd.
- franchise house
- Buying
- thanks-youbuy
- KELI Electronics Technology Co., Ltd


Amazon Sellers:

- SainSmart
- KKmoon
- ilastore-eu

Others:

- DX.com
- Gearbest.com
- - SainSmart
Last edited by jye1 on Sat Dec 24, 2016 5:53 am, edited 22 times in total.
jye1
 
Posts: 863
Joined: Wed Feb 20, 2013 4:58 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby rmac » Wed Jun 17, 2015 11:47 am

Unfortunatly, I have a kit from one of the sellers you list and am trying to resolve with seller. I re-checked the pictures on the ebay listing, and they appear to also be copies. Looks like no resolution will happen with seller without ebay stepping in.

Do you have a list of good sellers? I would like to buy a real kit to build/use.

Thanks,
rmac
rmac
 
Posts: 1
Joined: Fri Jun 12, 2015 10:01 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby jye1 » Tue Jun 23, 2015 12:20 am

Please see viewtopic.php?f=18&t=504 for recommended sellers.
jye1
 
Posts: 863
Joined: Wed Feb 20, 2013 4:58 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby caulktel » Tue Jun 30, 2015 4:51 pm

I bought mine from Banggood, I didn't see them on either list. Is Banggood a legitimate company?

Joel
caulktel
 
Posts: 5
Joined: Mon Jun 29, 2015 3:39 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby jye1 » Wed Jul 01, 2015 5:13 am

Bandgood is believe selling genuine DSO138 kits. It has sold many kits and we didn't get any complaint about it so far. We didn't put it on the recommended list because we are not its directly supplier.
jye1
 
Posts: 863
Joined: Wed Feb 20, 2013 4:58 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby RetiredProgrammer » Wed Aug 19, 2015 4:29 am

I have recently purchased a DSO138 from Banggood and based on viewtopic.php?f=18&t=511
(no tear drops) it is a fake. Interesting- it has the updated firm ware. At least the reported number is ...-50.
It worked for a few days, now I am trouble shooting no trace on the 3.3V 1k Hz test signal and abnormal -10.69 vs target -8.08 at
TP25. The voltage at L1 is also -10.69 instead of the target of -8.11V. Rest of test points are close to target with 9.36V input. Any suggestions?
RetiredProgrammer
 
Posts: 6
Joined: Wed Jul 29, 2015 8:40 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby davef » Wed Aug 19, 2015 8:35 am

Now that is interesting. I believe that the voltage at TP25 and at L1 vary depending on the actual value of L1. If you put your finger on the probe can you pick up AC hum floating around your workbench?

Did you contact Banggood about the fake board?
davef
 
Posts: 68
Joined: Sat Jun 06, 2015 10:01 am

Re: Sellers reported selling FAKE DSO138 kits

Postby davef » Wed Aug 19, 2015 8:37 am

Have you read through Banggood's forum posting?
http://forum.banggood.com/forum-topic-61279.html?page=4
davef
 
Posts: 68
Joined: Sat Jun 06, 2015 10:01 am

Re: Sellers reported selling FAKE DSO138 kits

Postby RetiredProgrammer » Wed Aug 19, 2015 4:31 pm

Re: Notifying Banggood. I just did.
RetiredProgrammer
 
Posts: 6
Joined: Wed Jul 29, 2015 8:40 pm

Re: Sellers reported selling FAKE DSO138 kits

Postby RetiredProgrammer » Wed Aug 19, 2015 4:41 pm

Re: davef
Thanks for the suggestions. I went thru most of the trouble shooting guide - even
tested base of Q1 and Q2. Decided to run 3.3V test signal. All is fine. I do not know why I
lost the trace for the last week or so. I haven't made any intentional changes just remove/
replace display board and test probes. I'll enjoy my DSO138 until it stops working again.
RetiredProgrammer
 
Posts: 6
Joined: Wed Jul 29, 2015 8:40 pm

Next

Return to DSO138

Who is online

Users browsing this forum: No registered users and 2 guests