That makes sense I suppose. It would allow you to continue a test later or go straight on to a fresh test and record previous data at a later time. I thought it might have been something more significant I was missing.
I have just bought a ZY1276 from Amazon which appears to have recent firmware. I tried AutoDetect on a new Samsung Galaxy S9 charger expecting the Samsung-AFC 9V protocol go green, but it indicates as red which is not available. It is a genuine Samsung charger and has 9V indicated on it. Has anyone else come across this.
I am just plugging the ZY1276 direct into the charger, no cable of phone involved. As I understand it the ZY1276 should list the chargers capabilities with Auto Detect.
Just did a quick comparison, and they seem to be clones of the UM24(C).
Haven't recorded the video yet, as RuiDeng was nice enough to send me their UM25C and UM34C first, and I don't want to make the same video multiple times in a row.
They're in the queue, and will probably get filmed somewhere next week, after that, some time for editing, so mid September or so I guess...
Hi guys, looking to upgrade/complement my Portpilot. In particular, I’m looking for something that can spoof/code the output protocol (DCP, Apple 2A etc.) My Portpilot can, but only the older protocols and it needs a PC to do it. I think the ZY1270 has an output USB port that chooses the code automatically? And the RD Tech USB 3.0 can disconnect the data pins or spoof Apple 2.4A?
Are there any meters with more comprehensive spoofing capabilities? I think the ZY1276 can activate protocols that the supply already supports, if I’m reading it correctly. Oh and I’d prefer one that also tests the supply for each protocol individually like the ZY1276, instead of giving 1 or 2 protocols only. Thanks
Also, lots of power supplies will auto select the protocol now (eg Anker). I want to see what protocol it chooses, but won’t the meter affect the protocol selection? I mean normally the supply only sees the phone and negotiates with it. With the supply-meter-phone the supply is negotiating with the meter instead. Is there any way to get around this?
There aren’t any that test Apple Lightning cables, right? Haha
But RD Tech USB 3.0 ‘comprehensive’ tester (that’s what the model is called in the RD Tech AliExpress store) does ‘spoof’ the protocols (in settings).
Another USB meter that does this is what’s called the ‘white-tail’ USB meter, an example of this is the Mantistek ‘white tail’:
As you mentioned, the ZY1270 also has that feature.
However, I’m not sure if one can force one specific protocol to emulate though…
For protocol detection, the new meters also seem to have that feature (not just display 1 or 2 protocols supported, but testing the protcols — note this is not completely foolproof though). The ZL1100 USB load tester also has similar as the ZY1276. The Power-Z meters (KM001, KT001, FL001) also appear to have that protocol detection feature. The RD UM meters only displays the current protocol being negotiated (the UM25/UM34/AT34).
Thanks! The Portpilot was an Indiegogo project about 5 years ago. The only such device at the time, when there was still much confusion and incompatibility.
What happens to the output on the ZY1276 if you choose from the list that says
Auto detect
QC2.0
QC3.0
Huawei FCP
…
Apple 2.4A?
- “Auto-detect” will try to detect (request) and list the protocols supported by the charger/powerbank
- “QC2.0” (assuming the charger supports QC2) will list the QC2 voltages 5/9/12/20v and allow you to select that output voltage (only for the voltages that the charger supports)
- “QC3.0” (assuming the charger supports QC3) will list the QC3 voltages 5/9/12/20v and allow you to increase/decrease the output voltage by 0.2v each time (again depends on what voltages are supported by the charger)
- “Huawei FCP” - when I tested this on a charger that lists this protocol, it selects 9v output
- “Apple 2.4A” - I tried selecting ths, but I’m not sure what happened, the screen just refreshed, and I’m not sure if it set to the Apple 2.4A mode or did anything… (the charger I tried supports Apple 2.4A protocol by default)
I noticed there are actually 5 different models that look alike and “comprehensive” is the most advanced one:
USB 2.0 3 bit
USB 3.0 4 bit
USB 3.0 4 bit-H
USB 3.0 protector
USB 3.0 comprehensive
And only the two 4 bits and comprehensive models can spoof the output. They call it “charge mode”. They seem to suggest it’s handled by a chip, which will choose the best protocol. A few sellers are selling this under different names but it looks like RD is the original manufacturer? I was about to buy this, then I realized it doesn’t identify the source protocol!
Note that while it does not identify source protocol (the meter does not even show the voltages of the D+/D- lines), however it will convert output to one that’s DCP5v/1.5A / Apple 5v/2.4A / Samsung 5v/2.0A protocols. If the source protocol previously supported QC2/QC3, then the output will NOT have those protocols when the meter is set to battery mode…
Thank you, yes, I’m about to buy this one, mainly for the graphing capabilities. There are 3 functions I’m looking for, and no small meter has them all (I think the ZY1276 does):
Protocol identification - RD’s AT34 (it’s like the comprehensive one, but with a color screen), Atorch 12 in 1, a couple of the 3 or 4 line OLED display ones, and the big screen ones like the UM24/ZY1xxx. Some only give D+/D- voltages instead of identifying the protocol, but I think it’s supposed to be good enough since the protocol changes anyway.
Protocol emulation - a few of RD’s smaller ones in the table I posted above. The AT34 doesn’t. ZY1270, and I think the ZY1276 does a few protocols.
Graphing - the comprehensive one you posted is the only small meter that does this.
Small USB meter that does graphing, maybe the ZY1275, which is supposed to have all or most of the features of the ZY1276, and it’s in a small form factor like a flash drive (similar likely to the RD USB 3.0 meter in size or just a bit wider). Actually haven’t seen a review of the ZY1275 nor reviews of it. It seems to not be that popular??
Or the Power-Z KM001 is also small in size, and has graphing capabilities.
Dodge did a quick review of the KM001 here:
I think the KM001’s protocol identification isn’t as good as the ZY1276’s.
KM-001 also has the QC2/3/FCP/etc protocol trigger (but not spoofing - doesn’t convert if the power adapter doesn’t have that protocol in the first place)
The KT001 (Avhzy CT-002) and others may also have similar features, but are a bigger form factor like the UM-series or the ZY1276 in size.