Purchased a ZY1276 from ebay seller 6999694 in late December. Delivery took approx 9 business days via included (free) ePacket from Shen Zhen to the Central US.
Construction seems solid and the LCD is vivid. The charge rate/power detection appears accurate after testing and comparing the documentation on a number of different make/model power banks and wall chargers.
The unit arrived with firmware 3.35G with default language of English. No instructions were included but I was able to figure out basic operation from the ZY1270 manual found at www.kaayee.com/download/.
After some additional research on yzxstudio.world.taobao.com, I found the ZY1276 description page has reference to a document archive. This archive has the v3.33 English and v3.35 Chinese manuals in pdf. (说明书_免费高速下载|百度网盘-分享无限制)
For those asking about the apple MFi check - I haven’t figured out a way to perform this test.
Update on the MFi check:
* A Quick Charge 3.0 capable power source is likely required to activate this test.*
1.) Repeatedly press select button until you are on Screen 3 (Voltage / Current / Power + DATALINE + PROTOCOL)
2.) Long press select button to activate the “FastChargeTrigger” menu.
* WARNING* Make sure nothing other than the power supply is connected at this point. You take the risk of accidentally over-volting/destorying any connected downstream electronics in cables or devices depending on your power supplies’ capabilities and the Fast Charge menu options you choose! It’s easy to accidentally trigger >5V voltage output in this menu so consider this warning.
3.) Press button twice to select “Are You Sure”? (As a safety measure - If a connected device is detected this option may not be available.)
4.) Long press button to enter the Fast Charge Trigger menu.
5.) Press button repeatedly to navigate to the “AppleOldMFi” menu item (last on list) and then long press to start the test.
6.) You will be prompted to connect the power supply side of the MFi cable and press button to start test. Cycling power will take you directly back to the “AppleOldMFi” test menu until you manually exit by long pressing the button.
Notes:
If connected to a typical 5v only USB power source, the MFi test will fail saying “Not Allowed”. After a good deal of trial and error and some additional research I found a different brand’s USB power meter MFi check requires a Quick Charge 3.0 power supply for the test. It appears this test requires 6.5+ volts.
After locating a power bank with a QC 3.0 port, I tested every Apple cable I had on hand and found the following:
A.) 10+ Apple OEM lightning cables passed both the first 5V and second 6.xV tests as expected. These cables included the original thinner and the slightly thicker cables shipped with the newer ipads and iphone+ size models.
B.) A single new Apple OEM cable failed the first test (test 2 auto skipped) and was detected as a Fake. I’m fairly certain this is a previously unused cable that came with an iPhone X or an 8. However the cable works fine for full rate (12 Watt) charging a 50% discharged iPhone X and iPad Pro 10.5 on IOS 11.2
C.) Amazon Basics branded 3ft + 6ft cables passed both tests.
D.) Anker branded 6ft cabled passed both tests.
E.) Cheap 4pk of “G-Cord” labeled 6” cables from Amazon - Failed first test and labeled as a fake. However this cable charges a 1/2 charged ipad Pro at 11.75w (5.00v/2.35A). It also charged an iphone 5s @20% charge with very aged battery at ~4 watts.
I’m not an MFi certification and spec guru… if I had to guess, the MFi test performed was for an older MFi spec… hence the label “AppleOldMFi”.
Someone with more knowledge of MFi certification, specs, and changes between them please chime in.