CRC/MD5 Sum errors - Galaxy S II Q&A, Help & Troubleshooting

I've tried to download the latest firmware for optus but every time I do I get an error with md5/crc
First was from an external site and 2nd from Check fus.
How do I fix this??

Keep trying. If you're using your phone, don't. Use a PC. If you're using PC & have a firewall or any IP blocking software, disable it. Try a different internet connection.
At some point one or more of the files are becoming corrupt/damaged.
These are the things I've tried whenever this has happened to me. This kind of thing tends to happen a bit with mobile broadband, tho it does happen on cable/DSL connections sometimes.

Using laptop. (wired connection ofcourse)
The router is shared with two other computers, so do you think if I only use it for downloading the firmware it will work?
Really pissed atm, takes so long to download too.

First time I tried to root my phone I borked it, so had to download stock to fix it. Just wouldn't work from home, every download ended up corrupt. So I went to a net cafe the next day & got it.
Nowadays, I find it only tends to happen if I forget to turn firewall & IP blocker off, but it's definitely a network issue if keeps happening. Definitely try the tricks I mentioned & do it without anything else using the connection at the same time.

Sweet. I'll try it tomorrow and see how it goes. Hopefully I don't have to end up going to internet cafe haha

Related

[super noob] Extremely unstable data connection (phone issue, with linux on pc)

Hi there,
i'm very noob to pdas in general, i have this herm100 that my friend sold me when i needed to get internet access (i combined my budget for phone and internet in one).
Well, after a while of hard work, i was able to get data working on my Linux PC (EeePC 701). The connection was closing automatically when not in use, this behavior is useful when not used as modem (to keep battery).
I created a script that "connects" my pc to the phone (it setups the interface's ip, etc...), when connected, it then pings the phone (10.0.0.1) and pings my host on the internet by IP (this tests that i have access to the internet). It makes other tests too to make sure dns is working and that my webserver on that host is still working too...
I make the pings to the host by ip every 15 seconds (or less when it fails). With this and minimal internet usage, the connection will drop on the phone 2 to 5 times a day.
When i say that the connection drops, i mean that ping to the phone works, but ping to the internet fails, times out. Most the time, the internet sharing prog on wm6 says it's still connected. Many times, if i try to access the web from the phone it will fail (wait forever, rarely will also freeze). So when the internet is dropped, one time out of 4 i have to reset the device (i found that shutting down for a while gives even better results).
I just recently got a super promo for my data package with my isp and my limit got increased a lot... I tried downloading torrents. Downloading torrents will cause the phone to drop connection _at_least_ every 5 minutes!!! The device is also pretty hot (like i wouldnt like to have that heat in my jeans pocket but doesnt hurt when touching). I have setup my torrent application to limit download and upload speed so that overall no more than 15 KB/sec is used and this increases stability a lot, but it will still fail within 10-20 minutes.
I wonder if the hardware could be responsible, but i'm clearly sure that the OS is the one most responsible (it fails to detect the network is down and fails to at least try to bring it back). Maybe an os upgrade or hard reset would help. But if i have to go that far i might just try to install linux on it instead (openmoko probably,unless you suggest anything else?)
I was wondering if you guys could help stabilize my connection a bit?
Thanks!
Simon

[Q] wifi connected but can not connect

Hey I'm new to android, just got a vibrant last week. Decided to unlock it as I travel a lot. The unlock worked, but now I'm having issues with my wifi. I can connect to a wireless network but I cant load pages. The wireless signal is strong and I tried with different routers, but still no luck. Looked through the forum and googled it but couldn't find a solution. If some one could please help with this, it would be much appreciated
try clearing your current wifi settings including remembered connections, passwords, and everything else...then re-scan for networks all over again, that's all I can think of for now
By that you mean just gong into settings->wireless and networks->wifi settings and then just forget the net work, rescan, and rejoin the network? If so, I did that but am still getting the same result. If you can think of anything else or if I didnt do what you suggested correctly please let me know. Thanks
srah said:
By that you mean just gong into settings->wireless and networks->wifi settings and then just forget the net work, rescan, and rejoin the network? If so, I did that but am still getting the same result. If you can think of anything else or if I didnt do what you suggested correctly please let me know. Thanks
Click to expand...
Click to collapse
yeah, thats what I meant :/....hmmm...sounds like your connection is working, can you download stuff from the market or is it just the browser? cause I unlocked mine too and wifi works fine
No I cant download anything from the market. I cant do anything that requires an internet connection, but it does show that I am connected to a network.
srah said:
No I cant download anything from the market. I cant do anything that requires an internet connection, but it does show that I am connected to a network.
Click to expand...
Click to collapse
hmmm...im out of tips then ...perhaps some other members can be of more assistance
I sure hope so, thanks for your help
Have you been able to try another network? My first thought was it was in Ad-Hoc mode but I could be wrong. If nothing else restore to stock firmware and then try a different unlock.
Happened to me too. It would show the wifi icon on the notification bar but wouldn't load pages. I'd go to the settings and it'd say can't turn off wifi or can't turn on wifi. And when it was "on" I'd say connecting to modem then it'd just stop. When I was using the browser on wifi it would load a page even when I had full bars. I had to turn it off then back on to load another page. Is this similar to the problem your having?
Sent from my SGH-T959 using XDA App
I hope this doesn't sound stupid but yesterday I uninstalled Advanced Task Manager and poof my wifi started working again. The phone also seems to suffer from less occasional lag without it installed, but that's another story for another thread. Prior to this I had to manually turn my wifi connection off and on, but even that didn't always work. Since the uninstall I have not my wifi connection once. I am currently using the stock rom, rooted with minor adjustments here and there.
hi guys, i also have this problem.
i will be taking the phone in to the tmobile store on thursday.
it shows that i am connected via wifi; however, anything that requires an internet connection does not load.
very frustrating, since just yesterday i used the samsung kies software to tether a network for my laptop. i was testing the capability of the vibrant to act as a modem, and it worked just fine.
any help would be appreciated!
thank you
Charlie
connected but not connected
I also have this problem.
In my Vibrant shows that i connected, but i can not load pages. Someone
found any solution to this problem?
Hi all,
This is happening to me too. Rebooting seems to get Wifi working correctly again. But the problem comes back eventually.
Maybe a bug in the latest JI6 update?
Wi-fi problem.
Someone found any solution for this problem?
Froyo's update will fix this issue?
Thanks.
i hang on you **** iphone users they just bay for its cool smartphone **** iphone android is the king

connect to an unsecured wifi network?

does this work for anyone? i have never been able to on my 101
I have no problems connecting to my unsecured network at home (don't worry, there's only maybe five houses on my street that could even reach it!) How far can you get in connecting? For example, will it see the network when you scan? Will it fail when you try to select it? Will it select, but not have a web connection?
lbhocky19 said:
does this work for anyone? i have never been able to on my 101
Click to expand...
Click to collapse
Never had a single issue. Are you sure it's not Adhoc or something? What channel is the AP?
i've been unable since i first bought it... and ive updated firmware and done full restores before.
it connects fine but doesn't actually have internet once it does. happened on a few different networks but most notably would be my phone when i made it a hotspot it would work fine if i put a password on but wont if i do it unsecured
lbhocky19 said:
i've been unable since i first bought it... and ive updated firmware and done full restores before.
it connects fine but doesn't actually have internet once it does. happened on a few different networks but most notably would be my phone when i made it a hotspot it would work fine if i put a password on but wont if i do it unsecured
Click to expand...
Click to collapse
I have to reconnect to my phone sometimes when using hotspot, seems like the routing breaks every once in a while, but I connect to multiple unsecured networks(actually using radius auth, but that won't change anything) on a regular basis. Sorry, I can't really think of anything that would cause that even after reformatting. I'd start looking at the dmesg logs for an error.

[Q] Wifi not working after htc root method

Hope someone can help with this: rooted the other day using the htc unlocker method. so s-on with root and still stock rom..have not changed anything other than install busybox. no other changes. have not even gotten to flashing roms yet. So the phone will not recognize my home towifi. when it scans for networks, it sees everybody (neighbors) but mine as being in range (even tho i am sitting next to it). at one point i finally got it to connect yesterday, but then when i went to work it never disconnected and returned to 3g, so when i went to use my internet for something it said it was still connected, when in fact it wasn't. so no data and no 3g. I had to physically turn off wifi to get the phone to be able to connect to 3g. now i am back home, it will not connect again. the phone does not see my network as being "in range", therefore will not connect.
I have several other devices that connect to the network just fine (like my laptop I am typing on).
any ideas would be greatly appreciated.
There's an app called WiFi analyzer and WiFi manager available on the play store. Idk y it isn't connecting to your WiFi now when it did before, but maybe one of these 2 apps can help.
WiFi analyzer will tell u what channels thw other WiFi networks are on in your area. It could be an issue of interference. It will also tell u the best channel to put your WiFi on to avoid that interference.
Do u have best WiFi performance on in settings-WiFi? Turn it off/on see if it makes a difference. Off is optimal since it kills batteries.
WiFi manager helped my phone recognize and connect to open networks quicker than stock settings did. Maybe try that as well.
Is your connection password secured? WPA/WPA2, WPK? Is it a linksys router? Try making a static ip for your phone. My phone would never connect at work on an open network until I made it a static ip. Or it would connect and never send data.
Actually, try that first, I forgot about that. If its an older linksys router that's probably what it is.
Anthonicia said:
There's an app called WiFi analyzer and WiFi manager available on the play store. Idk y it isn't connecting to your WiFi now when it did before, but maybe one of these 2 apps can help.
WiFi analyzer will tell u what channels thw other WiFi networks are on in your area. It could be an issue of interference. It will also tell u the best channel to put your WiFi on to avoid that interference.
Do u have best WiFi performance on in settings-WiFi? Turn it off/on see if it makes a difference. Off is optimal since it kills batteries.
WiFi manager helped my phone recognize and connect to open networks quicker than stock settings did. Maybe try that as well.
Is your connection password secured? WPA/WPA2, WPK? Is it a linksys router? Try making a static ip for your phone. My phone would never connect at work on an open network until I made it a static ip. Or it would connect and never send data.
Actually, try that first, I forgot about that. If its an older linksys router that's probably what it is.
Click to expand...
Click to collapse
I will try some of those things, but I don't think that is it. whatever is wrong is coming from root. everything was fine before that. and i don't know anything about setting up a static ip. not a linksys, btw.
greek goddess said:
I will try some of those things, but I don't think that is it. whatever is wrong is coming from root. everything was fine before that. and i don't know anything about setting up a static ip. not a linksys, btw.
Click to expand...
Click to collapse
Root doesn't have anything to do with your WiFi. It is highly unlikely anyways. Google how to set up static ip. U can do it right from your phone.
Your router doesn't show up at all or does is try to connect and nothing? Mine tried to connect and nothing. To set up a static ip your phone needs to at least see the router.
If you're rooted are u s-off? Either way, try installing a rom of your choice and doing a full wipe to clear out whatever is causing the issue. Maybe try installing new radios/firmware. RUU to newest ota version.
Good luck!
Anthonicia said:
Root doesn't have anything to do with your WiFi. It is highly unlikely anyways. Google how to set up static ip. U can do it right from your phone.
Your router doesn't show up at all or does is try to connect and nothing? Mine tried to connect and nothing. To set up a static ip your phone needs to at least see the router.
If you're rooted are u s-off? Either way, try installing a rom of your choice and doing a full wipe to clear out whatever is causing the issue. Maybe try installing new radios/firmware. RUU to newest ota version.
Good luck!
Click to expand...
Click to collapse
downloaded wifi analyzer, but that doesn't really help me figure out why the wifi will not connect or disconnect properly. As stated in my original post I am rooted, s-on, with unlocked bootloader htc method. this problem is almost exactly the same problem i had my samsung s2 when it first came out. the radio would not wake up after sleeping and the wifi radio was all messed up. In exactly the same way..
once it connects it is ok, but when i leave the house it never disconnects! so when i go out, it does not switch over to the 3g radio, and at that point i have to TURN OFF wifi. When I come back in the house then i have to go through another long process of trying to get it to connect to my wifi again. I did not change ANYTHING after rooting. So it has got to be related to that somehow....it just says. "MWOI0 not in range", but yet it will show 5 others in the neighborhood as being available (all secured like mine).
Does your regular computer/laptop connect to your wifi?
Have you rebooted your router/modem?
We had a power outage/surge one day and the computers connected still had connection, but the items which were disconected (phones left house for work) would not reconnect.
I know it sounds simple, but we spent half an hour figuring out why some devices had wifi and some didn't.
You are seeing neighbors wifi's, that's why I suggest this.
I also noticed this other thread, maybe related,
http://forum.xda-developers.com/showthread.php?t=1691189
There's an app called tasker in play store that allows u to turn on/off wifi by location automatically. It costs a pretty penny, but definitely worth it. The possibilities are exponential with that app.
Look into setting a static ip & change the channel on your router. Give u advice and u don't want to try it. Do u really want it fixed or is it just an annoyance u like to complain about?
Static ip worked for my phone in a similar situation. Up to u to implement the fixes.

Lost wifi after Oreo 8.0 update

Tab S3 worked well on 7.x. Lost wifi completely address 8.0 update. Tried all the recommended forget connection, reset network, full wipe after ota . When all that failed I flashed the full 8.0 with Odin. Still had no wifi. Repeated all those reset steps again with no joy.
Strange part is the same situation occurred with my LG V30. Worked well on 7.x, no more wifi after ota to 8.0. Repeated the resets and full flash series again but still won't connect.
My Razer Phone and One Plus 6 phones connected to the same wifi out of the box (with 8.0?), ota'd to 8.1 and have been solid since.
Am I stuck waiting for Tab 3 / V30 flashable (stock) files to 8.1?
You can download some network tools from the play store. See if they help you pinpoint what is going on. You don't happen to have MAC address filtering turned on the router? Though doubt your MAC address would change but I did read an article where Apple changed the MAC Address in their iPhones after it was discovered the government tracked people by MAC address. So it is possible it changed. See if you can hit a public WiFi (library, coffee shop, etc) and get it to connect there? Or a neighbor's network?
aspexil said:
You can download some network tools from the play store. See if they help you pinpoint what is going on. You don't happen to have MAC address filtering turned on the router? Though doubt your MAC address would change but I did read an article where Apple changed the MAC Address in their iPhones after it was discovered the government tracked people by MAC address. So it is possible it changed. See if you can hit a public WiFi (library, coffee shop, etc) and get it to connect there? Or a neighbor's network?
Click to expand...
Click to collapse
@aspexil
Just set the hotspot on one of the working devices and see if you can connect to it.
Is the wifi actually enabled?
I had the same problem happened to my Tab S3 a few days ago after I upgraded to Oreo (8.0) I could connect to WIFI but it says I have no internet connection. I have tried different routers and at different places and still the same problem. Strangely, I can connect to internet from time to time (intermittently) despite my Tab S3 giving an exclamation mark on the WIFI signal and warned me I have no internet access. I have tried resetting network, factory reset no less than 5 times, and also tried connecting at different places. I have read somewhere that by changing the time on the unit fixed the problem for quite some people, but didn't work for me. I did not root my tablet, so now I'm stuck looking for solutions.
update 2018.12.05: there was a new patch out (Oct. 2018), so I updated my S3 and now it still doesn't see internet even after connecting to WIFI. I tried resetting and now I can't even pass the Agree to Terms & Conditions part as it still says I have no internet. Before the patch update I could at least access internet even though tab S3 thinks I am not connected to internet. Guess I have to try to root it or throw away the tablet.
ryusaeba said:
update 2018.12.05: there was a new patch out (Oct. 2018), so I updated my S3 and now it still doesn't see internet even after connecting to WIFI. I tried resetting and now I can't even pass the Agree to Terms & Conditions part as it still says I have no internet. Before the patch update I could at least access internet even though tab S3 thinks I am not connected to internet. Guess I have to try to root it or throw away the tablet.
Click to expand...
Click to collapse
Have you rooted?
ashyx said:
Have you rooted?
Click to expand...
Click to collapse
No have not rooted. All stock now. If all else fails, I guess I will have to try to root and flash ROM and see if my WIFI can come alive again.

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