While Google hosts a scavenger hunt, iFixit has taken a step further and uncovered our own treasure, the Samsung Series 5 3G ChromeBook.

Has Google changed much since the prototype Cr-48 Chromebooks were sent to developers late last year? Join us as we reveal the inner-most secrets of the Series 5 3G ChromeBook.

For the most up-to-date information, follow iFixit on twitter.

这个拆解是不是维修指南。 要维修你的的Samsung Series 5 3G Chromebook,请使用我们的服务手册

  1. The Samsung Series 5 Chromebook is the first ChromeOS notebook offered to the public.
    • The Samsung Series 5 Chromebook is the first ChromeOS notebook offered to the public.

    • It features:

      • A 1.66 GHz Intel Atom N570 Processor and integrated Intel NM10 Graphics

      • 2GB of non-upgradeable DDR3 RAM

      • 12.1" Matte LED-backlit LCD display

      • 16GB internal SSD

      • 802.11 b/g/n Wi-Fi and Verizon 3G WWAN connectivity

      • SD card reader and two USB 2.0 ports


  2. Along the left edge lies the power connector, fan vent, rubber door for Mini-VGA and USB ports, and a headphone/microphone jack.
    • Along the left edge lies the power connector, fan vent, rubber door for Mini-VGA and USB ports, and a headphone/microphone jack.

    • The SD reader is on the front left face of the machine for all you shutterbugs and mini-storage freaks.

    • Finally, along the right side is the door for a USIM card and another USB port.


    • Before we start tearing this device apart, let's do a little comparing to Google's previous developer-only Chromebook, the Cr-48.

    • The outer exterior of the Series 5 is much more elegant than its ancestors, and a bit slimmer as well.

    • The Cr-48 scores bonus points for repairability with its removable battery.

    • Both feature nearly identical keyboards, and playing around with the machine for a bit revealed that the Series 5's trackpad is an improvement from the Cr-48.

    • Sadly, Samsung's legalese-speaking technical writing department made their safety instructions much more boring than those included with the Cr-48.

    • Enough jabber, let's crack this thing open!


    • After removing a couple Phillips screws and searching for more Phillips screws under the feet, a plastic opening tool makes short work of the retaining clips securing the bottom panel.

    • With the bottom panel gone, we finally get a good look at the guts of the beast.

    I count three (3) exposed screws and I have not figured out a good way to remove the rubber feet.

    Robert James - 回复

    Hey Robert, I just disassembled my Chromebook and found the rubber feet very easy to remove with just a flathead screwdriver. They also stick back on again afterwards.

    I also updated the part of the guide to be more clear about that.

    Jan Christoph Borchardt -

    • We decided to pop open the Cr-48 to see how it compares to the new Series 5.

    • The similarities include:

      • Separate motherboard & I/O board layout with mini-PCIe cards for WWAN, Wi-Fi, and flash memory.

      • Intel NM10 graphics cards are used in both machines.

    • The major differences are:

      • The Cr-48 has removable/upgradeable RAM, while the Series 5's RAM is soldered to the motherboard.

      • The Cr-48's battery is accessible from the outside of the machine, while the Series 5 must be cracked open to swap out the battery.

      • The Series 5's Atom N570 processor sports dual cores with a total of 512K more L2 cache than the Cr-48's single core Atom N455.


    • The Series 5's massive (albeit thin) battery can be removed after twisting out three Phillips screws and disconnecting it from the motherboard.

    • The Samsung-manufactured lithium polymer battery is good for 8.1 Amp hours at 7.4 V!

    • Coupled with the Series 5's low-power Atom processor, the battery is good for 8.5 hours on a charge.


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    • Next, we can use a spudger to disconnect the WWAN antennas.

    • After removing a single screw, the WWAN board can be removed from the I/O board.


    • Big players on the Qualcomm Gobi2000 WWAN board include:

      • Qualcomm MDM2000

      • Samsung K4X56323PI 32 MB Mobile DRAM

      • Qualcomm RFR6500 receiver

      • Qualcomm RTR6285 UMTS transceiver with GPS


    • The Wi-Fi board uses essentially the same mounting and connectivity as the WWAN board.

    • After removing it from the Series 5 and de-soldering the EMI shields, we get a good look at the Atheros AR9382 802.11n Wi-Fi chip with XSPAN.

    • The back of the Wi-Fi board doesn't have much going on.


    • After removing its mounting screw, the 16 GB SanDisk SDSA4DH-016G SSD can be removed from the motherboard.

    • This is the same SSD used in the Cr-48.

    Anyone know where you can get SSDs of this type with larger capacity? I can't find anywhere that stocks them on google :/

    Elliott Street - 回复

    • Removing two screws frees the miniscule heat sink from the Atom processor.

    • The Atom processor and NM10 graphics chip produce such little heat that no cooling fins are used at the fan's exhaust. Air forced over the thin copper plate comprising the heat sink and fan shroud bottom by the fan blades is enough to keep things cool.


    • After removing the display data, keyboard, I/O board, SD reader, and speaker cables, a few screws are all that's left keeping the motherboard in place.

    • After it is finally freed from the Series 5's chassis, the motherboard can easily be removed.


    • Front and rear side of the motherboard:

      • 1.66 GHz Intel Atom dual-core N570 processor

      • Intel NM10 Express Chipset (labeled as CG82NM10)

      • Realtek ALC272 4-Channel High Definition Audio Codec

      • Samsung K4B2G0846 HCH9 2 Gb DDR3 SDRAM (total of 8 IC's = 2 GB RAM)

      • SMSC MEC1300-NU

      • SLG8SP513V clock generator

      • SMSC EMC2112 Fan controller

    Would love to find out the part #/ order info for the charging socket. (Have one of these with a shattered socket that lost it's pin.)

    kf6nvr - 回复

    • At this point, not too many interesting components are left in the Series 5's chassis.

    • The I/O board can be removed at this point, and it isn't all that appealing. It simply serves to transmit information from the motherboard to the mini PCIe communication cards, USIM card, USB port, and right speaker.

    • The speakers are held on with little strips of tape and can be removed at this point. No word on how they sound just yet but judging by their diminutive size and fabric domes, they probably won't be popping eardrums anytime soon.

    • Removing the SD card reader reveals the widely-used Realtek RTS5138 SD reader IC.


    • The Series 5 display is attached to the upper case by four surprisingly loose Phillips screws.

    • After a bit of wiggling and magic, the display detaches with no problems.

    • Located underneath the keyboard, we discovered a Synaptics T1320A – Capacitive Touchpad Controller.

    Differences between this and the CR48 touchpad controller?

    adcurtin - 回复

    It would be nice if you guys could disassemble the screen as well. I'm always curious about the webcam and the MCUs in the screen.

    asuteke - 回复

    • Samsung Series 5 3G Chromebook Repairability Score: 6 out of 10 (10 is easiest to repair)

      • SSD, Wi-Fi, and WWAN, and most other components are individual modules that can be replaced independently

      • Display is very easy to remove

      • Mostly-plastic construction feels a little cheap

      • RAM is not replaceable

      • Battery cannot be removed without opening the case


Just a comment. I don't want to sound rude but it looks like Samsung just took a bunch of old parts and connectors and put this notebook together. Very little looks like it was customized for this device. I'm not saying this is bad but I would have hoped Google/Samsung would have made a better attempt at providing a quality product. This looks like the typical Dell computer with a bunch of Fry's rip-off parts.

plink53 - 回复

We're just so spoiled by the elegance of Apple laptops, that industry standard looks bad in comparison :)

Alex Jansen - 回复

Just pointing out a major difference: The N570 processor is dual core while the N455 processor is single core.

Kevin Kerr - 回复

It would seem based on this new UI, Google may be looking to do what Apple has. Create a PC OS that is integrated with a Mobile OS. Wouldn't be surprised to see ChromeOS replace Android in the near future. Would certainly give Android a refresh with all the fragmentation issues it currently has.


Jehnavi - 回复

Anytear down of the actual LCD? I have about 15 of these chromebooks with cracked screens. Trying to figure out how to get to the panel and get a part number to see about replacements

Ken - 回复

Does anyone have a pin out guide for the keyboard connector? I have a bunch of these chromebooks in various states of repair and am looking to build a machine using the components out of one with a broken screen. All I'm missing is a way to power on the device without the keyboard attached. I'm assuming there should be a pair of pins on the socket for the keyboard connector that I can connect a switch to for powering on?

martin8777 - 回复

Some plastic thing that is knife-edged - I used a kitchen scraper tool- will get this open after you remove the screws that are obvious and those under the rubber feet. Two screws were lost from one side of the hinge. Tiny drops of gorilla glue and moving one screw from the other side of the hinge - use glue on both sides of hinge. Gorilla glue is a low-tech tool to give precision hi-tech stuff an extended life - along with duct tape and drywall screws. It's not elegant but it works.

Frank Skee - 回复



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