New Zoyi multimeter+oscilloscopes - ZT-70xS, up to 50MHz/250MSps (nov 2022)

[wedgehog]

I haven't installed the new software yet but I was using the 703S yesterday and I noticed that no matter what I set on the display menu tab, even if I set it to off, the display switches off at what appears to be the same period of time, I don't want it to switch off at all! most annoying when I am working on the bench, just in the middle of a measurement and the damn thing goes off!

I cannot tell which menu item you are claiming to be changing. The two that I know of are the "BL time" setting in the oscilloscope menus and the "auto off" time in either set of menus. If those are all set the way you want them, I would probably do a "format" then a "default" and see if it behaves correctly after that.

I did say it switches off after the same period of time so I guess it's the Auto off?

[wedgehog]

I haven't installed the new software yet but I was using the 703S yesterday and I noticed that no matter what I set on the display menu tab, even if I set it to off, the display switches off at what appears to be the same period of time, I don't want it to switch off at all! most annoying when I am working on the bench, just in the middle of a measurement and the damn thing goes off!

As a rule for forums, please always list the FW #, because "new" changes day by day.
Was it the v128 from the suspect website, or v127 from official site?

I have 703 on v127. Goto scope, change output signal to sine (should just default to 5kHz), exit out and hit Auto, it basically crashes.

I not even sure why, when you turn off ch2 and you have signal on ch1, pressing Auto activates ch2 while it combs the freq to find best volt & time scales.

v127 seems to be problematic on the scope side of the code.

The post is not about the firmware! and there is only 128 at the moment, it's about Auto shut of control.

[wedgehog]

If anyone orders the kit with the 703 plus two probes, take care when unpacking. For mine they just taped the bag with the extra probe to the front of the box containing the instrument, then coated the whole thing in tape and bubble wrap. One snip of the scissors and I now own a 6 piece oscilloscope probe cable.

I did, but at least my second probe was thrown inside the box next to the box the 703S was in! Sorry to hear your ended up being damaged.

[Randy222]

If anyone orders the kit with the 703 plus two probes, take care when unpacking. For mine they just taped the bag with the extra probe to the front of the box containing the instrument, then coated the whole thing in tape and bubble wrap. One snip of the scissors and I now own a 6 piece oscilloscope probe cable.

I did, but at least my second probe was thrown inside the box next to the box the 703S was in! Sorry to hear your ended up being damaged.

Same with mine. 703 box and a probe in bag next to the 703 box.
I assume the box is same size for the 702 and it can't accomodate a 2nd probe, so instead of re-doing packaging for the 703 they just toss in an extra probe. In a world of save-money, makes sense.

[Randy222]

I haven't installed the new software yet but I was using the 703S yesterday and I noticed that no matter what I set on the display menu tab, even if I set it to off, the display switches off at what appears to be the same period of time, I don't want it to switch off at all! most annoying when I am working on the bench, just in the middle of a measurement and the damn thing goes off!

As a rule for forums, please always list the FW #, because "new" changes day by day.
Was it the v128 from the suspect website, or v127 from official site?

I have 703 on v127. Goto scope, change output signal to sine (should just default to 5kHz), exit out and hit Auto, it basically crashes.

I not even sure why, when you turn off ch2 and you have signal on ch1, pressing Auto activates ch2 while it combs the freq to find best volt & time scales.

v127 seems to be problematic on the scope side of the code.

The post is not about the firmware! and there is only 128 at the moment, it's about Auto shut of control.

v128 from where?
Zotek site only has v127 for download, at the moment.
https://zotektools.com/firmware-update-703/ ------> https://drive.google.com/file/d/1j5GLloua8nbk5bFO4p7Zw5z5m3VUuqUF/view

[Aldo22]

New video:
https://www.eevblog.com/2024/02/07/eevblog-1597-zoyi-zt-703s-80-2ch-50mhz-oscilloscope-multimeter-review/

I still think a DSO2512G plus an AN870 offers more bang for the buck.

[wedgehog]

I haven't installed the new software yet but I was using the 703S yesterday and I noticed that no matter what I set on the display menu tab, even if I set it to off, the display switches off at what appears to be the same period of time, I don't want it to switch off at all! most annoying when I am working on the bench, just in the middle of a measurement and the damn thing goes off!

As a rule for forums, please always list the FW #, because "new" changes day by day.
Was it the v128 from the suspect website, or v127 from official site?

I have 703 on v127. Goto scope, change output signal to sine (should just default to 5kHz), exit out and hit Auto, it basically crashes.

I not even sure why, when you turn off ch2 and you have signal on ch1, pressing Auto activates ch2 while it combs the freq to find best volt & time scales.

v127 seems to be problematic on the scope side of the code.

The post is not about the firmware! and there is only 128 at the moment, it's about Auto shut of control.

v128 from where?
Zotek site only has v127 for download, at the moment.
https://zotektools.com/firmware-update-703/ ------> https://drive.google.com/file/d/1j5GLloua8nbk5bFO4p7Zw5z5m3VUuqUF/view

See posts from naiclub on page 10, all I did was convert it to .zip

[tunk]

Review by EEVblog member Defpom.
Looks like he tested it with an old firmware version (1.1.0) so
some/most of the bugs he found may may be fixed in newer
updates.
https://youtu.be/MD0IkgcyF0o

[Randy222]

I haven't installed the new software yet but I was using the 703S yesterday and I noticed that no matter what I set on the display menu tab, even if I set it to off, the display switches off at what appears to be the same period of time, I don't want it to switch off at all! most annoying when I am working on the bench, just in the middle of a measurement and the damn thing goes off!

As a rule for forums, please always list the FW #, because "new" changes day by day.
Was it the v128 from the suspect website, or v127 from official site?

I have 703 on v127. Goto scope, change output signal to sine (should just default to 5kHz), exit out and hit Auto, it basically crashes.

I not even sure why, when you turn off ch2 and you have signal on ch1, pressing Auto activates ch2 while it combs the freq to find best volt & time scales.

v127 seems to be problematic on the scope side of the code.

The post is not about the firmware! and there is only 128 at the moment, it's about Auto shut of control.

v128 from where?
Zotek site only has v127 for download, at the moment.
https://zotektools.com/firmware-update-703/ ------> https://drive.google.com/file/d/1j5GLloua8nbk5bFO4p7Zw5z5m3VUuqUF/view

See posts from naiclub on page 10, all I did was convert it to .zip

I still not following.
V127 is the latest available from Zotek site.

[YurkshireLad]

So DefPom reviewed a device with 1.1.0, but the latest is 1.1.127? Why would they send such an old version - were they getting rid of old protoypes/test devices?

[Veteran68]

Reviewers and online influencers often get pre-release/prototype models well in advance of GA. Dave just posted a video reviewing the ZT-703S and comparing to the ZT-702S -- his 702S was an early preview model and he managed to brick it by trying to flash it to the current firmware, which it apparently wasn't compatible with.

[YurkshireLad]

Reviewers and online influencers often get pre-release/prototype models well in advance of GA. Dave just posted a video reviewing the ZT-703S and comparing to the ZT-702S -- his 702S was an early preview model and he managed to brick it by trying to flash it to the current firmware, which it apparently wasn't compatible with.

Yeah I saw that. I don't get why they would ship defective products; I guess they assume enough people will just buy them anyway so it doesn't matter if they get negative reviews.

Edit: I was tempted to get a 702s after watching several reviews.

[wedgehog]

Reviewers and online influencers often get pre-release/prototype models well in advance of GA. Dave just posted a video reviewing the ZT-703S and comparing to the ZT-702S -- his 702S was an early preview model and he managed to brick it by trying to flash it to the current firmware, which it apparently wasn't compatible with.

I don't understand the point of the company sending an old prototype to someone for a review, they are guaranteed to get a bad write-up because there will be problems with it, and Bricking when you try to do a firmware update is the worst kind of review, everyone will be afraid to do updates!

[Randy222]

So DefPom reviewed a device with 1.1.0, but the latest is 1.1.127? Why would they send such an old version - were they getting rid of old protoypes/test devices?

no. from the actual FW code, its "V1.2.7"
v127 for short.
Sorry for that confusion.

The latest being shipped appears to be BOOT: V1.0.14 with APP V1.2.7

The latest available is from Zotek wesbite, the links I already posted.

[YurkshireLad]

So DefPom reviewed a device with 1.1.0, but the latest is 1.1.127? Why would they send such an old version - were they getting rid of old protoypes/test devices?

no. from the actual FW code, its "V1.2.7"
v127 for short.
Sorry for that confusion.

The latest being shipped appears to be BOOT: V1.0.14 with APP V1.2.7

The latest available is from Zotek wesbite, the links I already posted.

Ah, thanks for the clarification. I wasn't sure what 127 was. 

[Randy222]

Ah, thanks for the clarification. I wasn't sure what 127 was. 

But you went to the Zotek site to see the latest FW available, yes?

[RAPo]

My 703S bought at https://thedmm.com/ just came in
It has Boot:V1.0.15, App:V1.2.8

(I've sold my 702S)

[Randy222]

My 703S bought at https://thedmm.com/ just came in
It has Boot:V1.0.15, App:V1.2.8

(I've sold my 702S)

I waiting on Zoyi support to respond to me about v1.2.8

Odd the unit is shipping with 128 but only 127 available for download.
I wonder if v128 is tied to the 1.0.15 boot, my 703 came with v127 and v1.0.14 boot.

[RAPo]

I will send an email to Tim from the ddmm.Com and report
back.

[modrobert]

Is the 703s signal generator good enough for 10x probe calibration using square wave at 1kHz with latest firmware?

[RAPo]

Yes, it is (although you cannot calibrate the 703S itself using the signal generator (for that, you have the use the square wave at the output).

Is the 703s signal generator good enough for 10x probe calibration using square wave at 1kHz with latest firmware?

[RAPo]

I can confirm that V1.2.7 works with boot V1.0.15.
Then, I tried to upgrade using V1.2.8 on page 10.
Havoc did arise: the scope said updating and restarted.
After that, the initial screen was flashing on/off, and the scope wouldn't turn off.

I had to open the scope, remove the battery, wait for some seconds, reinstall V1.2.7 (by using F1+power on, exit F2), and reinstall V1.2.8 (all while on USB and battery removed).
The 703s is working again, phew.

[kamil004]

Hello ;)
Does anyone know the changelog for v1.2.8 ?
Also i have boot 1.0.15

[Randy222]

I can confirm that V1.2.7 works with boot V1.0.15.
Then, I tried to upgrade using V1.2.8 on page 10.
Havoc did arise: the scope said updating and restarted.
After that, the initial screen was flashing on/off, and the scope wouldn't turn off.

I had to open the scope, remove the battery, wait for some seconds, reinstall V1.2.7 (by using F1+power on, exit F2), and reinstall V1.2.8 (all while on USB and battery removed).
The 703s is working again, phew.

Yeah, I think this is why most are waiting for updates from the Zotek (Zoyi) website.

I still not seen procedure to update boot rom code. Boot v1.1.14 may not be compatible with some unknown App v1.2.8

[Atlan]

By how many screens can the signal be shifted?  How long can I view the course of the signal?