tag:blogger.com,1999:blog-19284871142022545332024-03-04T22:20:44.796-08:00rootВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.comBlogger40125tag:blogger.com,1999:blog-1928487114202254533.post-67925116468881345882023-12-01T16:45:00.000-08:002023-12-01T16:57:57.367-08:00Repair of multi-cooker control board CFXB60-W-MS2-DP CFXB60-W-MS2\MS3-DP GX V2.0 CORSO with IC TS3F465D-HD from Sapir SP-1985-A5 I suspected that the integrated circuit TS3F465D-HD is broken. But I was wrong.Markings on the PCB are:CFXB60-W-MS2-DPCFXB60-W-MS2\MS3-DPGX V2.02012-12-25CORSOMulticookers with this board are sold under brands Sapir and Redmond (and possibly other brands).The integrated circuit is TS3F465D-HD.The symptom is that before the program finishes it turns off.First, I repaired it by re-soldering Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-72725981676419424622023-01-29T12:02:00.007-08:002023-01-30T04:52:38.078-08:00Banks and bank-like fintech companies do not understand different address formats, especially one of the address schemes used in Bulgaria Many bank and bank-like fintech apps are designed with terrible UX.Because they assume the standard address format with a name of a street and a number of a house.In many cases the address is different.For example, my address have this format:Name of a residential complexNumber of the blockNumber of the entranceNumber of the floorNumber of the apartmentMy address is not known with a name ofВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-17209362979320814352022-09-02T08:13:00.001-07:002022-09-02T08:13:10.550-07:00Integrating wireless doorbell with an old wired 3-8V systemWhen the receiver is connected to the mains (or the voltage is restored after a drop) it rings. Keep in mind this if you don't like false positives.I shorted the button and connected it to the old wired 3-8V system with one diode 1N7004 and one capacitor 1000uF/16V. When the old 3-8V bell rings the transmitter is powered and is sending a signal to the receivers.The wireless system can be found onВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-65894569407311035782021-11-16T23:26:00.003-08:002021-11-19T22:54:08.867-08:00Phishing hosted on Bluehost and using Duck DNS for third level domain name - LOL Still works days after the first email:Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-61358335057460021402021-10-11T03:43:00.006-07:002022-05-20T10:59:21.530-07:00"All Wise debit cards are valid for 3 years." - Wise.com ; Update: it's 5 years, not 3I asked them: "I can't find where on your website is specified for how long is valid the debit card (after how many years will be the expire date)."The answer:Thanks for getting in touch!All Wise debit cards are valid for 3 years.We’ll let you know 2 months before your card expires, so you can get a new card by clicking on Order a new one. This way we won’t charge you a replacement fee.If you Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-62786442076515998152021-10-11T03:00:00.003-07:002021-10-11T03:00:25.305-07:00UX issues when signing up to Wise.com The problem is "First name(s)" does not sound right for many users. Many will not notice it and will write their first name without realizing that they should also write their middle name or surname.There should be another field for the middle names and surnames.This may affect payments, because some banks and payment institutions do not allow payments with account holder names not matchingВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-645193276491649492021-10-10T10:41:00.002-07:002021-10-10T10:41:12.059-07:00Passphrase security evaluation algorithm This is about the passphrase evaluation algorithm at Wise.com.Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-77404598065163271992021-06-23T04:35:00.000-07:002021-06-23T04:35:03.208-07:00btcofficialwallet.org - Bitcoin paper wallet generator stealing the private keyThe website btcofficialwallet.org is another paper wallet generator stealing the private key.It's obvious that the private key is being transmitted to the QR code server with a HTTP_GET request.Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-72949626535390748422021-05-20T06:07:00.007-07:002021-05-22T14:19:48.620-07:00Remora: A Cryptocurrency With Additional Block Hardening by Recording the Block Hashes on Another Blockchain and Variable Block RewardsI have an idea to create a cryptocurrency in which some of the block hashes are written on another blockchain.For example, the blockchain can only use proof of stake as consensus mechanisms for most blocks, but at a variable interval, the block hash is written to the blockchain of another cryptocurrency that uses proof of work (i.e. Bitcoin).I named this cryptocurrency Remora after the parasitic Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-37051620228291498652021-05-12T01:36:00.004-07:002021-05-12T01:54:12.819-07:00The new website of the Bulgarian Parliament - oops
Link for testing: https://cloudflare-ipfs.com/ipfs/QmZCBmxLxAk56ad4WyQMXvHUSw6ZWvjkqYd4QsR5mDY1AaCode:<html><meta http-equiv="Content-type" content="text/html; charset=utf-8" /><body><br /><br /><br /><h1>Натисни бутона и потвърди, че искаш да изпратиш данните.</h1><p>Може да се наложи да натиснеш бутона "send anyway".</p><form Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-51767324228429217522021-05-04T15:02:00.008-07:002021-12-03T00:34:28.875-08:00Noise generator without the need for additional power supplyThis noise generator is designed to be connected to the microphone input of a computer and does not require additional power.The disadvantage of the circuit is that it is sensitive to external interference. When I put it on the UPS, a signal from its transformer (50 Hz) began to prevail.Circuits that rely on a strong noise source require higher supply voltage and higher current, so they cannot beВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-47584327059263832172021-04-20T14:09:00.004-07:002021-04-20T14:13:16.665-07:00The backlight of MOTOROLA MOTO E6S does not seem to use PWM for the backlightI tested it with a photodiode connected to the microphone input of the sound card. When I position the photodiode towards the phone's LCD dispaly I do not hear signs of PWM.When I position the photodiode towards my LCD monitor Acer S222HQL Abid I hear about 1kHz beep (this is to confirm that my setup is correct).Here is a photo of MOTOROLA MOTO E6S:I am posting this MOTOROLA MOTO E6S image Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-27285843856557054582021-04-20T02:27:00.003-07:002021-04-20T02:27:58.372-07:00Common misunderstanding of dividends - explanation Reddit user wrote something stupid:One of the main reasons I purchased T was because of the dividends. Dividend paying stocks are valuable for ROTH IRA's because ideally you can build enough dividends to pay out a salary for your retirement, rather than having to sell the stock.The reply from a Tax CPA explains this popular misconception about dividends:
Dividends should be irrelevant to Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-44081550981422062302021-04-11T09:46:00.007-07:002021-04-13T07:34:58.113-07:00US Household's Equity Allocation Hits New Record - Money Printer go Brrr...
Link to the same meme in Facebook.
Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-52316561222600802942021-04-09T08:28:00.006-07:002021-04-09T08:33:23.390-07:00IPFS does not work when /home directory is not readable - /home/myusername/snap/ipfs/1912: Permission deniedWhen I type "ipfs daemon" I get error message "cannot create user data directory: /home/myusername/snap/ipfs/1912: Permission denied".I solved this by making the /home directory readable:chmod o+r /homeIt make no sense for the IPFS to require read access to the /home folder. All other programs are working fine. But ipfs does not like it.I tested "what could go wrong" when made "chmod o-r /home". Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-54731782145617980542021-04-09T08:17:00.009-07:002021-04-09T11:10:19.680-07:00North Edge AK watch - User's Manual in English [PDF]
I did not found the instruction manual online, so I digged up the box with the
original paper manual and scanned it in a PDF format.
So, if you are looking for an English user's manual for the North Edge AK
watch - you can download it from here: 8 pages PDF, 3 pages PDF. Be aware that it's written in Chinese version of English. If you don't like this type of English you can see my Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-9944428456090813652021-04-05T13:39:00.002-07:002021-04-05T13:39:13.322-07:00HP1740 not working correctly, problem with colours and flickering
Most likely the problem is with RTD2523.
The board is BENQ 48.L1G01.A02.
The power supply is providing 4.97V and 3.28V in standby mode and 4.93 and 3.26V in "on" mode.
I checked and the chip should work with voltage greater than 3V, so 3.26V should be fine.
Now I have RTD2523, will write later what happened.Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-45224020971819421592021-03-29T16:19:00.008-07:002021-11-18T23:36:22.036-08:00How to make longer lasting LED bulbs :: This is why we can't have nice things - planned obsolescence
Video URL: https://www.youtube.com/watch?v=j5v8D-alAKE (visit YouTube if the embedded video does not work) My LED bulbs sometimes burn out. And when they do I repair them by
shorting the burnt LED. This metod works If the bulbs are with one circuit of LEDs in series
this solves the problem temporarily. Until the next LED burns.When the LED board contains two circuits connected in parallel Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-29692547439554683622020-11-12T07:31:00.007-08:002021-03-29T16:55:33.752-07:00Another phishing "free Facebook ads"The phisherman is using link shortener (Rebrandly) and free file hosting service (Mediafire).
Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-69873878677826761882020-11-03T05:22:00.004-08:002020-11-12T07:32:20.399-08:00Phishing site "Manage Facebook ads through Google (ADX)" hosted on Google Sites with malware on cdn-google.site
valentin@computer:~/Downloads$ sha512sum DoubleClick\ for\ Facebook-ADX.exe
704d7b5260dad465d599df4ec8245077076fef3084b941c7af73639d205ae1200115cba7aac2c60ca714168151d979dca06b72d3d8f4270bb9a3f640365c3457 DoubleClick for Facebook-ADX.exe
valentin@computer:~/Downloads$ sha256sum DoubleClick\ for\ Facebook-ADX.exe
6904894657936f7ab8aaefb08a91ab3d8d16b53fdb0dc1fc48edacacfdd151ea Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-38872853420325170002020-10-31T14:25:00.008-07:002020-10-31T14:25:55.649-07:00Fixing "permission denied" error when trying "ipfs add"When I tried to add a directory from another partition ipfs said "permission denied".
$ ipfs add -r bionicpup64-8.0-with-crypto-tools
Error: open bionicpup64-8.0-with-crypto-tools: permission denied
USAGE
ipfs add ... - Add a file or directory to ipfs.
ipfs add [--recursive | -r] [--dereference-args] [--stdin-name=]
[--hidden | -H] [--ignore=]...
[--ignore-rules-pathВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-90863532480897181062020-10-28T16:20:00.006-07:002020-10-28T17:04:10.191-07:00Looking for BIP39 tools? Beware of phishing!I just found an advertisement on Google advertising a fake BIP39 tool and reported it to Google.It's trying to mimic the well known "iancoleman.io" domain name (the first letter of the phishing domain name is "l", also one more letter is wrong).Always download BIP39 tools from reputable sources and use them offline (or at least not in the browser).The original BIP39 Mnemonic Code Converter is: Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-60155669628734092532020-06-18T09:02:00.001-07:002020-06-18T09:04:39.442-07:00simplint.com - phishing website, fake bank, collecting document scans for identity theft
This is a phishing website made with Wordpress. Passwords are being sent in cleartext to the email address. They just collect the identity document scans in order to be used for identity theft.
There is no corporation name of the bank on the TOS and Privacy Policy.
The domain name is recently registered (about 2 weeks ago).
The 100 EUR bonus is too good to be true. No fees for ATM withdrawalsВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-9879666827518701212020-05-12T13:27:00.001-07:002020-05-12T13:27:17.668-07:00Fake forex broker - WRX global wrxglobal.com
There are multiple websites built with the same template:
wrxglobal.com
avexcapital.com
cnvcapital.com
goodzgroup.com
conventusgroup.com
The companies listed on the website does not exist in the company registers.
Валентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0tag:blogger.com,1999:blog-1928487114202254533.post-6532958350075740272018-12-17T14:02:00.004-08:002021-05-10T23:31:17.475-07:00Soft latching power switch with inrush current limiting
Use the switch S1 to turn on or off the inrush current limiting.
In the "normal" mode the inrush current is over 2A. In "inrush current limiting" mode the inrush current is less.
I am not using powerful MOSFET, because there is no other working model in the free version of the simulator (the generic one is not working with such a low gate-source voltage).
Link to the simulation onВалентин Стойковhttp://www.blogger.com/profile/09538107660082373959noreply@blogger.com0