SDG830 another boot issue  - Page 1
Forum section: electronics / repair

author: joeideal
author_rank: Newbie
timestamp: August 19, 2022, 03:06:27 pm
content: Hi allI have the boot freeze issue with SDG830. Tautech was kind to help out with booting from sd card, I’m super glad he did as Siglent support has been to say the least shocking. No reply’s to emails absolutely nothing.Anyway grouch over the problem still exists.Yes I know I should have kept looking for updates and updates should have been done.The issue I have isI have Kernal starting … onscreen with the Siglent Logo only.Insert of 4 different sd cards all formatted correctly with Recovery software on “ again kindly provided by Tautech”Switch on power then on screen sometimes goes black with backlight still on then nothing , buttons are all lit.Am I missing something like moving resistors on the board or jumping something on the board to get this unit to see the sd card.All voltages test exact.I thinking I may have to test this unit out fullyIt was a gift so would rather have this workingThanks everyone

author: tautech
author_rank: Super Contributor
timestamp: August 20, 2022, 12:30:39 am
content: Quote from: joeideal on August 19, 2022, 03:06:27 pmYes, you certainly are and have ignored my instructions to read the PDF instructions carefully !Step 6 gives instruction on changing boot resistor positions.Photographs indicate these resistors are also on the underside of the PCB.Moral of the story, RTFM !

author: joeideal
author_rank: Newbie
timestamp: August 22, 2022, 04:20:51 pm
content: Hi TautechI really don’t have step 6 or photographs. in the Folder read meJust treble checked and only have step 1-3. And page 1-13 saying when data recover succeedRestart the generator

author: tautech
author_rank: Super Contributor
timestamp: August 22, 2022, 05:30:14 pm
content: Quote from: joeideal on August 22, 2022, 04:20:51 pmThere is NO folder Read Me.Instead the full instructions are in a 13 page PDF file named 'SDG800 series system recovery by SD card'Do NOT use the USB recovery instructions for SD card recovery.If you still have trouble download the recovery package again and unzip it to get another copy of the PDF.

author: joeideal
author_rank: Newbie
timestamp: August 22, 2022, 05:53:32 pm
content: Hi TautechNope don’t have theseOnly downloads are SDG800 series recovery files by U-DiskBoth downloads you kindly gave me are for USB onlyDef not have the sd card one

author: joeideal
author_rank: Newbie
timestamp: August 24, 2022, 07:20:20 pm
content: A massive thank you to Tautech for going way out his way to help me.Ok tried the sd card Firmware recovery kindly sent from TautechHowever the SD card recovery also Did not work, leaving running for at least 10mins a timeI also tried at least 4 different sd cards just to be sure it wasn’t the sd card.What I have is Siglent splash screen with “ Kernal loading… “ at the topWhen I switched the resistors to boot from SD on power up I get like 2 faint crackles from the onboard SpeakerDid not have this in USB boot.So I started testing the board to the extreme. All voltages are present all chips tested and correct voltages present.One chip I am confused with and cannot find a schematic for is this one in attached picture . It has 5v input at the + sign and nothing out the other pins. Front panel leds stay On. Turning off and on odd time screen goes black but backlight remains lit.Power cycle after 10mins carried out more than once boots to same Splash screen with Kernal loading…Sd card has all 3.2v at all correct pins.Thinking now biting the bullet on this machine and purchasing another. This was a gift from my daughter so it’s has sentimental value attached however not all things are repairable.It’s ok Guys it seems like ds2401 is a Silicon serial number for traceability. I could be wrong but it is the data sheet I found and the chip is extremely similar. Voltage is correct @ 5v

author: tautech
author_rank: Super Contributor
timestamp: August 25, 2022, 07:13:30 am
content: I’ve heard such reports before and always the issue was the SD card was not prepared correctly however that you are getting something on the display maybe points to another issue.

author: nunoavic
author_rank: Newbie
timestamp: September 08, 2022, 05:32:03 pm
content: Hi again,I have kinda the same problem during updating the firmware and suddenly the power went out. Now the SDG810 doesn't even show the siglent logo on startup, only a blank screen with all button LEDs lit. What should I do?. Is it dead?Thanks in advance

author: tautech
author_rank: Super Contributor
timestamp: September 08, 2022, 08:01:04 pm
content: Quote from: nunoavic on September 08, 2022, 05:32:03 pmHow old is it ?If it had late version firmware already on it USB recovery may be possible I'm not sure.PM sent.

author: Nick80
author_rank: Newbie
timestamp: February 05, 2023, 02:49:08 am
content: Hello Sir,I am having a similar problem with the SDG830. Freeze on startup. Can you guide me on how to solve it?Regards,Nick

author: sgeets
author_rank: Newbie
timestamp: April 13, 2024, 10:09:56 am
content: Dear, same issue here. I own an SDG 830 (bought in 2020), barely used and so never checked for firmware updates. It does not boot anymore and got stuck with the siglent logo remains. Could you please provide me with the files for micro SD and the procedure so I can still update and use my device? Many thanks !Rgrds,Stefan

author: sgeets
author_rank: Newbie
timestamp: April 27, 2024, 04:19:37 pm
content: At one point it didn't look good to get this unit recovered. But I didn't give up. With the help of tautech, it was finally recovered and upgraded to the latest firmware. Another device saved from the bin. Many thanks to tautech.

author: Wazesx
author_rank: Newbie
timestamp: March 10, 2025, 11:08:12 am
content: Hi Tautech, I'm also have problem with starting may SDG 830. I bought it last year, and turn on 2 or 3 times but now it stuck at logo screen.Can you please share the "SDG800 series system recovery by SD card" instruction with me.Thank alot!

author: tautech
author_rank: Super Contributor
timestamp: March 10, 2025, 06:47:15 pm
content: Quote from: Wazesx on March 10, 2025, 11:08:12 amIt's still in warranty.Contact Siglent support for the USB recovery package:support@siglent.com

author: Wazesx
author_rank: Newbie
timestamp: March 11, 2025, 01:04:52 am
content: Hi Tautech,My warranty is expired. I already send an e-mail to siglent and not yet receive any respond. Can you please share the instruction via my e-mail: khang.b9@gmail.comThanks