Related
Just looked at a teardown report of the Epic 4G (hat tip to los1223). It appears that the Epic 4G does not even use the same GPS chip as its GSM cousins. This is certainly news to me, because reading the tea leaves I have assumed that all Galaxy S phones shared the same GPS hardware, even if the software was in different stages of development and debugging.
According to the teardown, the Epic 4g uses the multifunction Qualcomm QSC6085 for GPS functions. (Presumably this is because of the CDMA radio, so the Fascinate design is probably similar.) Previous analysis the GSM variants, based on the international I9000 model as well as the Captivate and the Vibrant, showed they use a Broadcom BCM4751 chip.
This would explain why the symptoms of the GPS problems on the Epic, and the firmware modules, are not the same as those on the GSM variants. But amazingly, it seems that Samsung managed to screw up two different GPS designs in two different ways.
Is one chip better than the other?
I know my co-worker's TMobile Galaxy S (Captivate, Fascinate, Masticate...whatever) just recently received the GPS update and he states it is now spot on and very quick to lock.
Didn't ask about any hard coded location, though, like ours. I'll have to do that on Monday.
Thats ame gps as the motorola droids use I think
The new QSC6085 features include:
Support for EV-DO Rev. A with backward compatibility to EV-DO Rel. 0 and CDMA2000
Equalizer technology for increased EV-DO data throughput
Powerful GPS location capabilities, including gpsOne(R) multi-mode hybrid assisted GPS technology, enabling a broad variety of location services such as navigation, social, safety and security applications
Up to 3 megapixel camera support with anti-shake capability
15 fps video encode and decode capability
72-voice polyphonic ringtones with support for multiple audio codecs
Multiple technologies to improve network capacity, including QUALCOMM Linear Interference Cancellation (QLIC(TM)) with pilot and traffic cancellation, and Fourth Generation Vocoder(TM) (4GV(TM)), published as the EVRC-B 3GPP2 standard codec, which gives network operators the flexibility to prioritize voice quality or network capacity
Support for multiple bands, including 800 Mhz, 1900 Mhz and the AWS band (1700/2100 Mhz), with mobile receive diversity
Cost-effective 65 nm process technology and a 12 mm x 12 mm package size
othan1 said:
Is one chip better than the other?
Click to expand...
Click to collapse
Let me first lead off by same I'm not an expert on chipsets. That being said, I did a lot of research on the QSC6085 when I was looking to see if it supported TV out or if we were never going to have that feature (I can honestly tell you that I don't know enough about this stuff for a conclusive answer, but right now I'm guessing no for the 3.5mm port).
Anyhow, the QSC6085 is an integrated processor that does a lot of this with one chip rather than having multiple chips that do many individual things. The purpose was to reduce costs and potentially, create power savings as well.
The other galaxy S phones (at the least the GSM ones) have a dedicated GPS chip to where the Epic's/Fascinate's baseband modem (QSC6085) handles all kinds of things, including GPS.
Other devices that use the QSC6085 (like the Droid, Droid 2 and my Sierra Wireless modem) do not seem to have the same GPS problems as the Epic/Fascinate which tells me it's a Samsung implementation issue and not a problem with the chip.
It's either the software (highly likely, no reason for us to not get a fix within seconds even if it is horribly inaccurate) or an insensitive GPS antenna. The GPS antenna is easily spottable on the Vibrant and Fascinate. It's covered by black tape next to the SD card on the Fascinate, it should be the same on the Epic 4G.
heygrl said:
It's either the software (highly likely, no reason for us to not get a fix within seconds even if it is horribly inaccurate) or an insensitive GPS antenna.
Click to expand...
Click to collapse
the snr numbers and the cold start fix tell us it is both, mainly software though.
All current Note users, anyone here can tell me if any of the currently released Note's have NFC? Also read a spec sheet somewhere stating it to be optional, any chance we can get this as an add-on accessory?
I'm also keen to find this out. The UK devices have NFC listed as 'optional' which doesn't really reveal anything useful. Can anyone who has one identify whether the capability is there but not enabled or just not present? It would be nice to think that the devs here could enable it if it was available.
NFC: Optional
It will be supported by a connection through the micoUSB *sigh*
However, the Korean models will get internal NFC and LTE (4G) support. I was going to hold out for that model but aterwards I learned they will not have the Exynos but instead a Snapdragon (Qualcomm S3) chip instead.
I prefer an ARM chip (TI OMAP, Samsung in-house, ST-Ericsson, Nvidia Tegra) rather than Qualcomm = usually more devices, better performance, less battery drain, fewer driver issues, possible to recylce drivers from one device to another.
Hi,
I read about Android 4.4's new features and found two that are of interest for the battery life.
The first one is this one:
With the new version of the operating system, Google allows audio to be tunneled straight to the digital signal processor on the smartphone's chipset. This means that the DSP takes care of audio decoding and output effects, which reduces CPU usage and increases battery life as a result.
Click to expand...
Click to collapse
So my question #1:
Since all Qualcomm SOCs traditionally have a DSP, do you think it will work for the N4, too?
The second one I found interesting:
Android 4.4 introduces platform support for hardware sensor batching, a new optimization that can dramatically reduce power consumed by ongoing sensor activities.
With sensor batching, Android works with the device hardware to collect and deliver sensor events efficiently in batches, rather than individually as they are detected. This lets the device’s application processor remain in a low-power idle state until batches are delivered. You can request batched events from any sensor using a standard event listener, and you can control the interval at which you receive batches. You can also request immediate delivery of events between batch cycles.
Click to expand...
Click to collapse
That leads me to my second question:
I think this one will work on any phone? Or did I read it wrong.
Regards
user
Yes as far as I know from my research the Snapdragon S4 Pro, does have low power processing also, so all should work with the Nexus 4, when they finally release 4.4
See tests here;
http://www.anandtech.com/show/9260/the-huawei-p8-review/5
WiFi Performance
Moving on to WiFi performance we address one of the most critical faults of the P8: Lack of 5GHz WiFi. There were already some raised eyebrows during the official announcement where we couldn't find any mention of 802.11ac in any of the spec sheets, and indeed, the device comes without support for the higher frequency bands.
This raises some big questions about Huawei's choice of RF back-end and what exactly is going on there. Connectivity itself is provided by a Broadcom BCM4334, which is quite an ancient chipset by today's standards, as we first saw its introduction in 2012. Broadcom advertises max PHY rates of up to 150Mbps and upper layer rates of up to 90Mbps - and 5GHz is definitely listed as one of its capabilities. This is the same chip used in the Honor 6 and Mate 7, which did have 5GHz capability. In the end only Huawei knows what kind of decision-making process warranted such a significant omission of an every-day important feature.
Possible fix i will try tonight:
https://linustechtips.com/main/topi...slow-wifi-speed-happens-with-one-router-only/
I changed my wifi from standby to always. Weird things started to happen..
Test1 = 8.5 DLL / 4 UL
Test2 = 2.4 DLL / 0.3 UL
Test3 = 8.4 DLL / 4 UL
In test2 i wasn't downloading anything what so ever.
On my tablet i have stable 70 DLL / 5 ULL in every test i do.
Damn this sucks! I was going to buy p8 lite, now I need to look somewhere else.
Still waiting for fix
m waiting for fix
ward0 said:
See tests here;
http://www.anandtech.com/show/9260/the-huawei-p8-review/5
WiFi Performance
Moving on to WiFi performance we address one of the most critical faults of the P8: Lack of 5GHz WiFi. There were already some raised eyebrows during the official announcement where we couldn't find any mention of 802.11ac in any of the spec sheets, and indeed, the device comes without support for the higher frequency bands.
This raises some big questions about Huawei's choice of RF back-end and what exactly is going on there. Connectivity itself is provided by a Broadcom BCM4334, which is quite an ancient chipset by today's standards, as we first saw its introduction in 2012. Broadcom advertises max PHY rates of up to 150Mbps and upper layer rates of up to 90Mbps - and 5GHz is definitely listed as one of its capabilities. This is the same chip used in the Honor 6 and Mate 7, which did have 5GHz capability. In the end only Huawei knows what kind of decision-making process warranted such a significant omission of an every-day important feature.
Possible fix i will try tonight:
https://linustechtips.com/main/topi...slow-wifi-speed-happens-with-one-router-only/
Click to expand...
Click to collapse
For some reason my Huawei p8 lite doesn't connect to wifi using n wifi network. Is it a software issue? I am sure that router is fine since other devices connect to it using n wifi
Suleiman01 said:
For some reason my Huawei p8 lite doesn't connect to wifi using n wifi network. Is it a software issue? I am sure that router is fine since other devices connect to it using n wifi
Click to expand...
Click to collapse
yes, i have same problem.
This solution only works if you do not switch to airplane mode.. The best I have found is getting kernel adiutor and changing tcp to reno instead of cubic.
Considering a Note 4. Want to know what the common issues are with this phone and if these issues can be fixed.
For example:
+ Is battery life an issue with Marshmallow?
+ Does bloatware cause issues when running stock?
+ Any hardware issues, buggy hardware?
- Are there key issues with particular variants 910C, 910A, 910T,910F,910V?
- I plan on using with Tracfone and AT&T
- Is radio weak signal common to all variants?
http://forum.xda-developers.com/note-4/help/weak-cell-radio-signal-t2936725
+ Any root issues/cyanogenmod? I saw a couple issues listed.
Any hardware support problems. For example will spen work properly with onenote?
Hardware:
1: Exynos vs. Snapdragon 805
Online indications are the Snapdragon 805 is more prone to overheating than Exynos. Exynos also has better real world performance.
http://www.anandtech.com/show/8718/the-samsung-galaxy-note-4-exynos-review/10
Exynos has crippled memory bandwidth.
http://browser.primatelabs.com/geekbench3/compare/750158?baseline=775311
Exynos version comes with Wolfson audio DAC.
Snapdragon has GPU performance advantage. However, heat issue exists.
2: Cellphone radio is weak:
There are numerous posts indicating the cellphone radio in the phone is weak. This can lead to battery drain issues as well as heat. This can also be due to:
+ Bad SIM Card
+ Bad Antenna
+ OS Software update (5.1.1)
Any key things you wish you knew about Note 4 before buying. Help would be much appreciated!