Confirmed: Raspberry Pi 4 suffers from significant USB-C design flaw

Raspberry Pi 4 Won't Work with Some USB Type-C Cables

The Raspberry Pi Foundation recently launched the fourth iteration of its immensely popular single-board computer, the Raspberry Pi 4 Model B. Soon after, several units purchased by eager buyers failed to power up through the USB Type C port.

Raspberry Pi Foundation The Raspberry Pi 4 was announced on Monday, and it represents a massive leap in capabilities compared to previous models.

"A smart charger with an e-marked cable will incorrectly identify the Raspberry Pi 4 as an audio adapter accessory, and refuse to provide power", said the Pi's co-creator, Eben Upton. This non-compliant design breaks functionality with more powerful "e-marked" cables, such as the USB-C chargers that ship with Apple's MacBooks and some Windows 10 laptops. Many users also complained that the Pi 4 is not working with all USB-C cables. The Raspberry Pi Foundation will probably fix this design error in future board revisions, so you might get a more compatible device if you wait for that.

Upton added that he was surprised that the issue did not show up in its testing program, which he claims is "quite extensive". For those interested in the technical reasons this occurs, Upton has pointed to this article.

More news: American Airlines sees $185 million profit hit from Boeing MAX grounding

In order for a USB-C connection to work as intended with all USB-C cables, the Type-C connector needs to use two independent CC resistors.

"Benson Leung, an engineer at Google and one of the Internet's foremost USB-C implementation experts, has chimed in on the Pi 4's USB-C design too, with a Medium post titled "How to design a proper USB-C™ power sink (hint, not the way Raspberry Pi 4 did it)".

Kali Linux for Raspberry Pi 4 comes with on-board Wi-Fi monitor mode a d frame injection support for all your favorite penetration testing and ethical hacking operations. Incidentally, the new iteration does not have a dedicated power supply port and has to completely depend on USB Type C port. "The fact that no QA team inside Raspberry Pi's organization caught this bug indicates they only tested with one kind (the simplest) of USB-C cable". Raspberry Pi designers apparently deviated from it in two critical ways.

"The first is that they designed this circuit themselves, perhaps trying to do something clever with current level detection, but failing to do it right". Usually, e-marked cables are more expensive and come with larger, higher-powered items, like a USB-C laptop. However, several modern-day chargers are able to deliver far more power owing to newer Fast Charging standards. The good news is, the official Raspberry Pi power supply does work.

Related News:



Most liked

Megan Rapinoe accepts Capitol invitation from Democrats; slams Trump again
The soccer player said that it was hard in part because of backlash she faced. "Today, on behalf of all of us at U.S. Alex Morgan pops champagne, Megan Rapinoe says "I deserve this" as US.

Fed rate cut appears likely as Jay Powell prepares to address Congress
But relentless pressure from President Trump for a rate cut could complicate matters for a Fed that prizes its independence. Financial Stability Oversight Council, a federal organization created in 2010 that operates under the auspices of the U.S.

Brexit: Ex-PM vows legal action if UK Parliament suspended
Johnson faced rival Jeremy Hunt in a television debate last night, in which most agreed Hunt had performed better. Sir John said "we carried the election until nearly the very last date" and it was an "absurd charge".

Judge blocks Trump administration's move to require drug prices in TV ads
This regulation, which was a centerpiece of the administration's efforts to bring down drug prices, was set to go into effect on Tuesday.

New Zealand wins toss, bats 1st vs India
However, he used Yuzvendra Chahal's hilarious meme replacing it with Manjrekar's face and has urged him to unblock him on Twitter. Stead is picking 300 to be the magic mark at Old Trafford , especially with a new wicket being prepared for the occasion.

Instagram is hoping to combat cyber bullying via two new tools
When a user restricts someone, for example, that poster can see only their comments on the user's post, according to the company. The company said young people are often "reluctant to block, unfollow, or report " bullies for fear of escalating the incident.

Appeals Court To Hear Obamacare Arguments
"Congress itself - not a court - eliminated enforcement of the provision in question and left the rest of the statute standing". But the state has taken few steps toward planning for that outcome even as its litigators project optimism about the lawsuit.

Justin Bieber challenges Tom Cruise to bottle top challenge
You can see how he aggressively tagged Dana White and took it to a whole new level! "You guys are going to fight?" they asked him. Justin Bieber posted a video clip on Sunday in which he was standing shirtless and pulled the stunt off with flying colors.

Nicki Minaj cancels her concert at a Saudi Arabian music festival
In Saudi Arabia, gender segregation is still enforced in many areas of public life, while same-sex relationships are criminalised. Others puzzled how her revealing outfits and recount lyrics would trudge over within the ultra-conservative kingdom.

Cuomo Signs Bill Allowing US Congress To Access Trump's NY Tax Returns
But it's been met with resistance from the one Democrat who could actually utilize it. Brad Hoylman , a Manhattan Democrat and the Senate sponsor of the legislation.

House prepares subpoenas of top White House officials in Trump probe
Trump's concerns that Sessions' recusal would leave him unprotected "from an investigation that could hobble the presidency". He did not reach a conclusion on whether the president had attempted to obstruct justice, though he did not exonerate him.

The pointless Amazon and Google streaming feud officially ends today
This should never have been too far out of Google's way, since Amazon's platforms run a version of Android anyway. The ability to watch Amazon Prime Video on Chromecasts and Android TV devices is also rolling out today.

Jaden Smith launches a pop-up food truck for the homeless in LA
Jaden Smith performs at McDonald's at Bleacher Report All-Star Experience on February 18, 2018 in Santa Monica, California. Will also posted an adorable video clip on YouTube to celebrate the special occasion. "Happy Bday, J-Diggy.

Manchester United are under no pressure to sell players
Solskjaer was unhappy with those reports, accusing the media of having an "agenda" against Pogba . He's a great, great professional. "He has got a heart of goal".

NBA approves coach's challenge on one-year trial
There's always been an understanding that some players are talking to other players about teaming up, which is legal. Kawhi Leonard , the reigning NBA Finals MVP, bolted Toronto after just one year to sign with the Clippers .