USB tester Fnirsi FNB38 – Top… | Aclivity


Latest Articles

USB tester Fnirsi FNB38 – Top…

The first of them is PD Listener, judging by the same thing as PD Trigger – it shows a list of profiles, but without the ability to switch to the selected one. We take the tester, holding down the "OK" button, connect it to our computer via the HID USB (microUSB) port.
The fourth worker became a kind of mini-oscilloscope.
The control is implemented through three buttons located on the upper end of the case (“OK”, “Back”, “Forward”) By the way, it is quite convenient to use, especially against the background of one-button options from YZX Studio. Not all mobile devices can be charged with QC3.0 / 2.0 chargers in fast mode, as they only support PD.
The format is already classic – in the form of a small flash drive. Recording in memory.
All of the above suggests that the evolution of the development of usb-doctors from the Chinese has taken a long step forward in recent times. In the new software, the font of the text was slightly increased, otherwise everything remained the same. And if the previous v1.20 could be called a passing one, then the last one already has an impressive list. It usually contains all information about the product and is needed for currents above 3A and
high data transfer rates (from 480Mb/s and more). What most of the closest competitors do not have is a full-fledged charging protocol trigger. Trigger: Yes, Manual/Auto < br />Measured voltage: 4 – 24V Brand: FNIRSI The FNB38 model has already been reviewed on the site more than once, so I will not repeat it.
The tester arrived with version V1.10. Most of the changes and additions were carried out with this item. An excellent advanced USB tester that provides all the same functions as more expensive competitors for little money. It scratches very quickly, just wipe the surface with a regular cloth. With each version of the software, many useful changes are added, fixes for past errors. The FNB38 model also has such functionality. And now, of course, there is no one like that
you won’t be surprised.
Next, we will analyze in more detail the functionality, as well as all the new features.
PD Convert (or QC2.0->PD protocol convert) – can turn any ordinary charger with QC3.0 / 2.0 and a regular USB-A port into a modern one with Power Delivery support. Capacity: up to 99999, 9 mAh or 9999.99 Wh, memory 5 cells We update the firmware to version 1.30.

The product was provided for writing a review by the store. The first of them is the most primitive, remained without any changes. Complete set without surprises: device and one-sided color booklet. And this is done so that the tester can withstand currents up to 5A (spec limit). We reworked the algorithms for testing fast charging protocols, expanded it, and also added something that was previously missing. Download and unpack two archives with files: FNB38_TOOL.rar and Fnb38_Frimware.rar. Firmware number 1.30 brought a number of new features, with which the FNB38 can now be put on a par with such expensive models as WEB-U and ZY1280 (which cost twice as much). Here displays the serial number of the product, the number of inclusions. 13 items for fine tuning are also available. The first one is the software update software via PC itself, and the second one is a folder with firmware and a list of changes for each version. The quality of charging cables can be easily tested (but an electronic or resistive load is required).
During the manual test, the maximum power display also appeared in the PD Trigger section.
USB-A version 2.0 interfaces, with reinforced power contacts. A prompt will appear on the screen in the form of the inscription DFU 1.10.
The sixth screen is perhaps the most interesting item. We’ve entered bootloader mode.
For example, the photo below shows the results of fully charging a Redmi Note 8T smartphone. The main focus will be on the study and detailed analysis of new software, which has brought quite a few fixes and additions. The information of the minimum and maximum values ​​of current and voltage is displayed in the form of graphs.
Now consider the new items in order. With its help, you can, for example, find out the charging time of a particular device, determine the filled capacity, etc. When the tester is connected to a power source, the first two seconds are spent on displaying "Advertising". A couple of years ago, simple testers with primitive indicators, displaying only current and voltage, were from the category of super technologies. Review published in accordance with clause 18 of the Rules
I won’t talk about each in detail, I’ll highlight only those that appeared in firmware V1.30.
PD E-Marker is a special section that allows you to scan USB-C cables for the presence of a specially integrated E-Marker chip. The wire from Choetech tested in the photo below does not have such a microcircuit. Measured power: from 0 to 120W Earlier there were only 7 lines here, now there are 10 of them (there are PD Listener, PD E-Marker, PD Convert). Measured current: up to 5A
Everything is ready to continue the flashing procedure. As already mentioned above, you can enter this menu by holding the "Back" button before turning on the power. Below is a detailed list of changes in software V1.20 and V1.30: CC Pull Down and Start Page. The first is responsible for turning on or off the power on the CC data lines using the Power Delivery protocol, the second allows you to deactivate the display of the start page. The tester arrived just like everyone else – in a metal box with a transparent window on the front side. A good example is the latest iPhone models. I am glad that the developers have not abandoned support for this model and continue to update it. Added display of the maximum power of the device under test, according to the PD protocol, as well as the number of profiles.
Parameters: After 63 seconds, the process will end and the tester will automatically switch to the hidden settings mode already with the new software.
Conclusion The case is an assembly of several plates and the main board on metal racks.
Let’s move on to desktops. A kind of scanner that can determine which types of charges are supported by a particular device (memory, power bank). She can now
The fifth screen is used to determine the resistance. I hope that in the end the device will be brought to the ideal (or at least squeeze out everything that is possible). And since the device is already in the settings menu, let’s start with it. Many doubted that the manufacturer at such a low price would somehow support the product by releasing fixes and additions. Now there is a check for support for such types of charging as Apple and Android DCP. The front part is occupied by a 1.44-inch color screen, covered, as I said above, with ordinary acrylic glass. Built-in thermal sensor. But I use the FNB38 tester and this function can simulate the desired configuration. If you believe the numbers, the resistance is only 0.12 Ohm, which indicates
low voltage drop under load. In the photo below, I checked the meter-long microUSB cable from Voxlink. But for some reason, at the time of preparing and writing this review, the manufacturer’s link was inactive. Today I would like to talk about such a useful device as a USB tester. Resolution: 0.0001 V / A
The third screen is similar to the previous one, but it also indicates the current charging protocol and voltage along the data lines (D , D-).
The next screen, on the contrary, is the most functional, but also without additions.

USB tester Fnirsi FNB38 – Top for your money. After that, the system may issue an error alert, ignore it and just press START. The functionality of this menu remains the same.
One of the distinguishing and key features of Fnirsi USB testers is the ability to update the firmware.
I had to contact the seller and ask to send the files individually. Software update
Without exiting this screen, by holding down the “Back” button, you can open a table with the output of capacity results for all five memory groups. Model: FNB38 As a result, I received a direct link to a folder with software for FNB38. The QR code on the booklet is not accidental.
But before moving on to the study of new ones, let’s look at the old section of the autoscanner (01 Protocol detection).
If suddenly someone did not understand what kind of start page we are talking about, then I will clearly demonstrate it below. Here is her address below: In the photo below: the subject of the Fnirsi FNB38 review, a competitor from RD UM 24C, the old white “doctor” KCX-017. At the same time, be sure to remember to set the lower current limit through the settings menu (cut-off, according to which the tester will stop counting). When scanning it, we should be directed to the official website of the company, to the section with everything you need for self-flashing.
Go to the FNIRSI USB Meter program on the computer, select the desired file (software version). But as you can see, today the third software is already available – V1.30. These are lines numbered 12 and 13: According to the changelog of version 1.30, work was done to correct the output of these values ​​(zeros were sometimes displayed). Promo code FNIRSI1 is currently valid for the product, which gives a $3 discount. It is very easy to see what firmware is already installed on your device, press the "Back" button and apply power in any way.
A large number of various ports are provided for connecting and communicating with external devices: including two MicroUSB inputs, one of which is used for independent power supply, two Type-C ports (for input and output), and as well as full-sized USB-A (father and mother).

Skip to toolbar